f(-2){3x^2-1,x<1}{x+2,x_>+8
f(x) = 3x² - 1f(-2) = 3(-2)² - 1f(-2) = 3(4) - 1f(-2) = 12 - 1f(-2) = 11 f(x) = x < 1f(-2) = -2 < 1 f(x) = x + 2f(-2) = -2 + 2f(-2) = 0f(x) = x ≥ 8f(-2) = -2 ≠ 8