Question

What equation of a line that has a y-value that increases by 4 for every x that increases by 1 and also crosses the y-axis at -2

Answer 1

Answer: y = 4(x + 1) - 2

Explanation:

" increases by 4 for every x + 1" means the slope is 4 and the value inside the parentheses with x is +1

"crosses the y-axis at -2" means the y-intercept is -2

Input those values into the formula: y = m(x) + b where

• m is the slope
• b is the y-intercept