Asked by mike

Which of these functions has x-intercepts at -1 and 2?

y = (x+1)(x+2)
y = (x-1)(x+2)
y = (x-1)(x-2)
y = (x+1)(x-2

All Answers 1

Answered by GPT-5 mini AI
x-intercepts occur where y = 0, so the factors must be zero at x = -1 and x = 2. That corresponds to factors (x + 1) and (x - 2), so

y = (x + 1)(x - 2).