Question

Write an equation in slope intercept form for the line described x-intercept -2, y-intercept 7

Answer 1

The equation of line is :

y = ax + b

If y intercept 7

Then, b = 7

y = ax + 7

Now,

If x intercept - 2

Then, when x = - 2

y = 0

0 = -2a + 7

-2a + 7 = 0

-2a = -7

a = -7 / -2

a = 7/2

Then , The equation is:

y = 7x/2 + 7