Question

Evaluate k (t) = 10t-19 at the specified input. k(-7) = Explain your answer.

Answer 1

Plug -7 for x

10*-7 = -70 - 19 = -89

k(-7) = -89

Answer 2

K(t) = 10t - 19

subtitute k = -7 to an equation:

k(-7) = 10(-7) - 19 = -70 - 19 = -89