All GED Math Resources
Example Questions
Example Question #1 : Slope Intercept Form
Which of the following equations is written in slope-intercept form?
Slope-intercept form is written as .
There is only one answer choice in this form:
Â
Â
Example Question #2 : Slope Intercept Form
Rewrite the following equation in slope-intercept form.
The slope-intercept form of a line is: , where is the slope and is the y intercept.
Below are the steps to get the equation into slope-intercept form.
Â
Example Question #3 : Slope Intercept Form
Refer to the above red line. What is its equation in slope-intercept form?
First, we need to find the slope of the above line.Â
Given two points, , the slope can be calculated using the following formula:
Set :
Second, we note that the -intercept is the point .Â
Therefore, in the slope-intercept form of a line, we can set  and :
Example Question #4 : Slope Intercept Form
What is the y-intercept of the line with the following equation:
There are two ways that you can find the y-intercept for an equation.  You could substitute  in for .  This would give you:
Simplifying, you get:
However, another way to do this is by finding the slope-intercept form of the line.  You do this by solving for :
Just divide everything by :
Remember that the slope-intercept form gives you the intercept as the final constant.  Hence, it is  as well!
Example Question #5 : Slope Intercept Form
What is the y-intercept for the following equation:
There are two ways that you can find the y-intercept for an equation.  You could substitute  in for .  This would give you:
Simplifying, you get:
However, another way to do this is by finding the slope-intercept form of the line.  You do this by solving for .  Indeed, this is very, very easy.  Recall that the slope intercept form is:
This means that, as written, your equation obviously has .  You don't even have to do all of the simplification!
Example Question #6 : Slope Intercept Form
What is the equation of the line between  and ?
In order to figure this out, you should use your slope-intercept formula.  Remember that the y-intercept is the place where  is zero.  Therefore, the point  gives you your y-intercept.  It is .  Now, to find the slope, recall the slope equation, namely:
For your points, this would be:
This is your slope.
Now, recall that the point-slope form of an equation is:
, where  is your slope and  is your y-intercept
Thus, your equation will be:
Example Question #7 : Slope Intercept Form
Which of the following equations has a slope of ?
In order to compute the slope of a line, there are several tools you can use. Â For this question, try to use the slope-intercept form of a line. Â Once you get the equation into this form, you basically can "read off" the slope right from the equation! Â Recall that the slope-intercept form of an equation is:
Now, looking at each of your options, you know that you can eliminate two immediately, as their slopes obviously are not :
The next is almost as easy:
When you solve for , your coefficient value for  is definitely not equal to :
Next,  is not correct either.  When you start to solve, you should notice that  will always have a negative coefficient.  This means that it certainly will not become  when you finish out the simplification.
Thus, the correct answer is:
Really, all you have to pay attention to is the  term.  First, you will subtract  from both sides:
Then, just divide by , and you will have !Â
Example Question #1 : Slope Intercept Form
Rewrite the equation in slope-intercept form: Â
In order to rewrite the equation in slope-intercept form, we will need to multiply the reciprocal of the coefficient in front of y.Â
Simplify both sides.
The answer is:
Example Question #3 : Slope Intercept Form
Write the equation in slope-intercept form: Â
The slope-intercept form is: Â
Subtract  on both sides.
Divide by negative six on both sides.
Simplify both sides.
The answer is: Â
Example Question #4 : Slope Intercept Form
Write the equation in slope-intercept form: Â Â
Slope intercept form is .
Add  on both sides.
Multiply by three on both sides.
The answer is: Â