Write an equation in slope-intercept form for the line described.
x-intercept -9, y-intercept 7
The equation of the line is y=
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
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