Question

Which ordered pair is a solution of the equation y = -9x + 4

a. (10, -86)
b. (-4, -58)
c. (6, -41)
d. (-6, 57)

Answer 1

A. (10, -86)

Explanation:

A is the correct answer. The working is as follows :

To solve for y we have to use the equation y = - 9x + 4

y = - 9x + 4

Let's look at option A:

Option A's x value is 10. Let's use the equation to see if y would be - 86 when solved :

y = - 9 × 10 + 4

y = - 86

Therefore A is the right answer :)