Question

A line has a slope of

–
9 and passes through the point (1,
–
3). Write its equation in slope-intercept form.

Answer 1

y = -9x + 6

Explanation:

Given:

m = -9

(x, y) = (1, -3)

The slope-intercept form is y=mx+b.

Based on the given values we can rewrite this as:

-3=1(-9) + b

Solve for b:

-3 = -9+b

b = 6

Now, rewrite the equation with the given m and solved b values.

y = -9x + 6