Question

11. A line through points (-5, 2) and (2, y) has a slope of 3.
Find y.
Help

Answer 1

23

Explanation:

• Create an equation to find y: 3 =
  `(y-2)/(2-(-5))`

• Calculate by adding: 3 =
  `(y-2)/(7)`

• Multiply both sides of the equation by 7 : 21 = y - 2

• Move the variable to the left-hand side and change its sign : -y + 21 = -2

• Calculate and change signs : y = 23

y = 23