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# College Algebra

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Write an equation in slope-intercept form for the line described.

x-intercept -9, y-intercept 7

The equation of the line is y=

Guest May 25, 2017

#1
+5553
+2

y = mx + b

In this form, we know that b is the y-intercept..... b = 7

y = mx + 7

We know that this line passes through the point (-9, 0) , so we can plug this point in and solve for m.

0 = m(-9) + 7

-7 = -9m

7/9 = m

Now we know b = 7 and m = 7/9 , so the equation of this line in slope-intercept form is

y = (7/9)x + 7

hectictar  May 25, 2017
Sort:

#1
+5553
+2

y = mx + b

In this form, we know that b is the y-intercept..... b = 7

y = mx + 7

We know that this line passes through the point (-9, 0) , so we can plug this point in and solve for m.

0 = m(-9) + 7

-7 = -9m

7/9 = m

Now we know b = 7 and m = 7/9 , so the equation of this line in slope-intercept form is

y = (7/9)x + 7

hectictar  May 25, 2017
#2
+1

Thank You

Guest May 25, 2017

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