Question

A line with a slope of 7 passes through the point (1, 2). What is its equation in

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

Answer 1

y=7x-5

Explanation:

1. First of all, what is the Slope Intercept form?

y=mx+b

m=Slope

b= Y-Intercept

(x,y)= A point on the line

2. Fill in the variables with the information you already know.

m=7

y=7x+b

3. Find the Y-int

a. Plug in the point into the equation, and solve for b. The answer will be the y-int.

2=7(1)+b

2-7=b

b=-5

Y-int= -5

4. Now, plug in the y-intercept into the equation!

y=7x-5