Question

Check my answer please.

Find the zeros of f(x) = x2- x - 6 by using a table and a graph. Enter the largest zero. Use a number only.

I got -1 for the largest Zero

Answer 1

Let's check that answer. Plug in x = -1 to get

f(x) = x^2 - x - 6


f(-1) = (-1)^2 - (-1) - 6 ... replace EVERY x with -1


f(-1) = 1 - (-1) - 6


f(-1) = 1 + 1 - 6


f(-1) = 2 - 6


f(-1) = -4


Notice how the result is NOT zero, so that means that x = -1 is NOT a root or zero of f(x)

Answer 2

Wouldn't they both be negative though (x-1) (x+6) so its 6 sorry

Answer 3

wait no

Answer 4

x^2 - x - 6 doesn't factor to (x-1) (x+6)

Answer 5

Yes just realized.

Answer 6

-3 and 2

Answer 7

check each one

Answer 8

3 -2

Answer 9

because it works out that way

Answer 10

-2^2= 4
4+2=6
6-6=0

Answer 11

3^2=9
9-3=6
6-6=0

Answer 12

so i believe the answer would be 3

Answer 13

very good, you got it

Answer 14

Thank you :D

Answer 15

you're welcome

Answer 16

Find the zeros of the function h(x) = 3x2 + 13x + 4 by factoring.

4, -1/3
4, 1/3
-4, 1/3
-4, -1/3

Ok I did some more but then I got to this one and was like Wahhhhhhhh

Answer 17

Could you assist me

Answer 18

if factoring is a pain, you could use the quadratic formula to solve