Question

Given the function defined by r(x) = 2x² - 9x + 3, find r(-1).

Answer 1

r(-1) = 2(-1)^2 - 9(-1) + 3 = 2(1) + 9 + 3 = 2 + 9 + 3 = 9 + 5 = 14.

r(-1) = 14