All SSAT Upper Level Math Resources
Example Questions
Example Question #62 : Geometry
Find the equation of a line that has a slope of and passes through the points .
In finding the equation of the line given its slope and a point through which it passes, we can use the slope-intercept form of the equation of a line:
, where is the slope of the line and is its -intercept.
Since the problem gives us the slope of the line , we just need to use the point that is given to us to find the -intercept. Plug in known values for and taken from the given point into the equation to find the -intercept:
Multiply:
Subtract from each side of the equation:
Now that you've solved for , you can plug the given slope and the -intercept into the slope-intercept form of the equation of a line to figure out the answer:
Example Question #63 : Geometry
Find the equation of the line that has a slope of and passes through the point .
In finding the equation of the line given its slope and a point through which it passes, we can use the slope-intercept form of the equation of a line:
, where is the slope of the line and is its -intercept.
Since the problem gives us the slope of the line , we just need to use the point that is given to us to find the -intercept. Plug in known values for and taken from the given point into the equation and solve for to find the -intercept:
Multiply:
Subtract from each side of the equation:
Now, we can write the final equation by plugging in the given slope and the -intercept :
Example Question #64 : Geometry
Find the equation of the line that has a slope of and passes through the point .
In finding the equation of the line given its slope and a point through which it passes, we can use the slope-intercept form of the equation of a line:
, where is the slope of the line and is its -intercept.
Since the problem gives us the slope of the line , we just need to use the point that is given to us to find the -intercept. Plug in known values for and taken from the given point into the equation and solve for to find the -intercept:
Multiply:
Add to each side of the equation:
Now, we can write the final equation by plugging in the given slope and the -intercept :
Example Question #65 : Geometry
Find the equation of a line that has a slope of and passes through the points .
In finding the equation of the line given its slope and a point through which it passes, we can use the slope-intercept form of the equation of a line:
, where is the slope of the line and is its -intercept.
Since the problem gives us the slope of the line , we just need to use the point that is given to us to find the -intercept. Plug in known values for and taken from the given point into the equation and solve for to find the -intercept:
Multiply:
Subtract from both sides of the equation:
Now, we can write the final equation by plugging in the given slope and the -intercept :
Example Question #66 : Geometry
Find the equation of the line that has a slope of and passes through the point .
The question gives us both the slope and the -intercept of the line, allowing us to write the following equation by inserting those values into the slope-intercept form of the equation of a line, :
Alternatively, if you did not realize that the problem gives you the -intercept, you could solve it by using the slope-intercept form of the equation of a line. Since the problem gives us the slope of the line , we would just need to use the point that is given to us to find the -intercept. We could plug in the known values for and taken from the given point into the equation and solve for to find the -intercept:
Multiplying leaves us with:
We could then substitute in the given slope and the -intercept into the equation to arrive at the correct answer:
Example Question #67 : Geometry
Find the equation of a line that has a slope of and passes through the point .
The question gives us both the slope and the -intercept of the line. Remember that represents the slope, and represents the -intercept to write the following equation:
Alternatively, if you did not realize that the problem gives you the -intercept, you could solve it by using the slope-intercept form of the equation of a line:
, where is the slope of the line and is its -intercept.
Since the problem gives us the slope of the line , we would just need to use the point that is given to us to find the -intercept. We could plug in the known values for and taken from the given point into the equation and solve for to find the -intercept:
Multiplying leaves us with:
.
We could then substitute in the given slope and the -intercept into the equation to arrive at the correct answer:
Example Question #71 : Geometry
Find the equation of the line that passes through and .
First, notice that our -intercept for this line is ; we can tell this because one of the points, , is on the -axis since it has a value of for .
Now, we need to find the slope of the line. We can do that by using the slope equation:
We can substitute in the values of the provided points—,, and —and then solve for the slope of the line that connects them:
Now, put the two pieces of information together and substitute them into the equation to solve the problem:
Example Question #72 : Geometry
Find the equation of the line that passes through the points and .
First, notice that our -intercept for this line is ; we can tell this because one of the points, , is on the -axis since it has a value of for .
Now, we need to find the slope of the line. We can do that by using the slope equation:
We can substitute in the values of the provided points—,, and —and then solve for the slope of the line that connects them:
Now, put the two pieces of information together and substitute them into the equation to solve the problem:
Example Question #73 : Geometry
Find the equation of the line that passes through the points .
First, notice that our -intercept for this line is ; we can tell this because one of the points, , is on the -axis since it has a value of for .
Now, we need to find the slope of the line. We can do that by using the slope equation:
We can substitute in the values of the provided points—,, and —and then solve for the slope of the line that connects them:
Now, put the two pieces of information together and substitute them into the equation to solve the problem:
Example Question #74 : Geometry
Find the equation of the line that passes through the points and .
First, we need to find the slope of the line. We can do that by using the slope equation:
We can substitute in the values of the provided points—,, and —and then solve for the slope of the line that connects them:
Next, plug one of the points' coordinates and the slope to the equation and solve for to find the -intercept. For this example, let's use the point :
Multiply:
Change from a whole number to a mixed number with in the denominator, just like in the fraction :
Subtract from each side of the equation:
Finally, put the slope and the -intercept into the equation to arrive at the correct answer: