Question

Explain, Teach me. Im clueless.

Answer 1

Solve the equation by graphing. x2 - 5x - 24 = 0

Answer 2

What exactly do you need to solve for?

Answer 3

zeros?

Answer 4

They're choices..

{4, 6}
{-2, 12}
{-4, 6}
{-3, 8}

Answer 5

Okay, so you're trying to solve for the zeros of the equation. As this is parabolic, the function will cross two points on the x axis. You can solve by graphing on wolframalpha.com, or by factoring the equation

Answer 6

You can see that the equation is equal to (x+3)*(x-8)

Answer 7

foil it out if you you can't see it

Answer 8

with (x+3)*(x-8) = 0, only one of the two products has to be zero, so the zeros are -3 and 8

Answer 9

x1 and x2 are where the graph of the curve intersect the x axis