All GED Math Resources
Example Questions
Example Question #1 : X Intercept And Y Intercept
What is the y-intercept of the following line:
To find the y-intercept, we will look at the slope-intercept form of a line:
where m is the slope and b is the y-intercept.
So, given the equation
we can see the y-intercept is -11. Note that we must include the negative sign.
Example Question #2 : X Intercept And Y Intercept
What is the y-intercept of the following equation?
The y-intercept is the value of when .
Substitute into the equation.
Divide by 2 on both sides.
The answer is:
Example Question #2 : X Intercept And Y Intercept
If the x-intercept is 4, and the y-intercept is 2, what must be the slope?
We can obtain two known points from using the intercepts. The y-intercept is when , and x-intercept is when .
The points are:
Write the formula for the slope.
The answer is:
Example Question #11 : X Intercept And Y Intercept
Determine the x-intercept of the following:
The x-intercept is the value of when .
Substitute into the given equation.
Add 6 on both sides.
Divide by 5 on both sides.
The answer is:
Example Question #12 : X Intercept And Y Intercept
What is the x-intercept of the following equation?
The x-intercept is the value of when . Substitute the value for y.
Add one on both sides.
Divide by three on both sides.
The answer is:
Example Question #13 : X Intercept And Y Intercept
What is the y-intercept given the following function?
The following equation is already written in slope-intercept form.
The y-intercept is the variable .
Since the value is absent, the y-intercept is zero.
The answer is:
Example Question #761 : Geometry And Graphs
Find the x-intercept of the line with the equation .
Recall that at the x-intercept, the y-coordinate will be . Thus, plug in for in the given equation.
The coordinates of the x-intercept is located at .
Example Question #51 : Coordinate Geometry
Find the x-intercept of the following equation:
Find the x-intercept of the following equation:
The x-intercept is the point where the line crosses the x-axis. At this point, the y-value must be 0.
To find the x-intercept, plug in "0" for y and solve for x.
Now finish up by dividing by 2:
We can check our answer by plugging it back into our equation:
Everything looks good, so our answer is -8.5
Example Question #762 : Geometry And Graphs
The following points lie on a line.
What is the equation of the line?
Start by finding the slope of the line by using any two points.
Recall how to find the slope of a line:
Using the points , we can find the slope.
Now, we can write the following equation:
To find the value of , the y-intercept, plug in any point into the equation above. Using the point , we can write the following equation:
Thus, the complete equation for this line is .
Example Question #14 : X Intercept And Y Intercept
Find the x intercept of the following linear equation.
Find the x intercept of the following linear equation.
x intercepts occur when y=0, in other words, when we have no height.
So, plug in 0 for y and solve for x
So our x intercept is negative one half.
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