Question

Graph solution set on a number line in interval notation:

Answer 1

polynomial inequality :(

Answer 2

Ik the answer is either b or d but how

Answer 3

I think d

Answer 4

Do you know how?

Answer 5

Just kidding the answer is C

Answer 6

Hold on

Answer 7

Ok

Answer 8

is that because it's - 4 times 7

Answer 9

How would you do that not looking at the answer

Answer 10

first factor x^2 - 3x - 28
can you do that?

Answer 11

Um, 2 numbers that add to the middle and multiply to get the -28?

Answer 12

yes

Answer 13

Oh boy, ok give me some time factoring isn't my thing

Answer 14

= ( x - a)(x + b)
where -a and b are your 2 nunbers

Answer 15

4 times 7

Answer 16

7-4 is 3!!!

Answer 17

not quite - one them must be negative

Answer 18

right so its
( x - 7)(x + 4)
now we need to find the values will make this < 0

Answer 19

Ugh idk which one, how do you know so fast?!

Answer 20

-7+4 oh okay

Answer 21

what next?