Question

What is the equation of a line whose slope is 2 and passes through the point (-6,9)

Answer 1

y = 2x + 21

Explanation:

Step 1: Write out known variables

y = mx + b

m = 2

y = 2x + b

Step 2: Find b

9 = 2(-6) + b

9 = -12 + b

b = 21

Step 3: Rewrite linear equation

y = 2x + 21