Question

Which sequence of y-values was formed from the function y = -2x - 9 using WHOLE numbers for x

A)
-13, -15, -17, -19
B)
-13, -16, -19, -21
C)
-11, -20, -29, -38
D)
-10, -12, -14, -15

Answer 1

You just simply the substitute in every consecutive value of x, let's say starting at x = 1.
At x = 1, y = -2(1) - 9 = -11
At x = 2, y = -2(2) - 9 = -13
At x = 3, y = -2(3) - 9 = -15
At x = 4, y = -2(4) - 9 = -17
Therefore, the answer is A as the sequence follows the solution.