Question

Is (-4, 15) a solution to the equation y = -2x + 5? How do you know (PLEASE EXPLAIN HOW YOU KNOW)?

Answer 1

Answer:

Not a solution.

General Formulas and Concepts:

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

y = -2x + 5

Solution (-4, 15)

Step 2: Check

1. Substitute:                    15 = -2(-4) + 5
2. Multiply:                        15 = 8 + 5
3. Add:                              15 ≠ 13

Here we see that 15 is NOT equal to 13. Therefore, it is NOT a solution to the equation.