Question

There is a line that includes the point (6,9) and has a slope of 3. What is its equation in

slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.

Answer 1

y = 3x - 9

Explanation:

Using point slope form equation

y - y1 = m(x - x1)

Given

Point = ( 6 , 9)

Slope = 3

x1 = 6

y1 = 9

y - 9 = 3(x - 6)

Using a slope intercept form equation

y = mx + c

Open the bracket

y - 9 = 3( x - 6)

y - 9 = 3x - 18

y = 3x - 18 + 9

y = 3x - 9

The equation of the line is

y = 3x - 9