Question

17. y = x2 + 3x – 4
y = 2x + 2

Answer 1

what do u need to do with this problem?

Answer 2

i dont know

Answer 3

you have y = 2x + 2
plug that in for the initial equation then solve for x

Answer 4

can you show me how

Answer 5

2x + 2 = x2 + 3x - 4
x2 + 3x - 2x = 2 + 4
can you continue?

Answer 6

no what else do to do

Answer 7

x^2 + x - 6 = 0
factor it out you have (x+3)(x-2) = 0
solve for x
then plug your answer in to find y

Answer 8

what else do you do after this

Answer 9

what are your answers for x?

Answer 10

i don know hwo to do that

Answer 11

x + 3 = 0
x - 2 = 0
solve for that

Answer 12

yep. then plug that in the second equation to find y

Answer 13

ok so the answer is 8

Answer 14

@ninhi5 answer is 8 or 6

Answer 15

(–3, 6) and (2, –4)
(–3, –4) and (2, 6)
(–3, –4) and (–2, –2)
no solution

Answer 16

pick one :)

Answer 17

the 1st or 2nd

Answer 18

nope nope
plug in -3 for y = 2x + 2 to solve for y => y = 2(-3) + 2 = ?
then do the same for -2

Answer 19

-4 for the 1st then -2 for the second

Answer 20

IT IS THE THIRD

Answer 21

Hooraaaayyyy! good job :)

Answer 22

thankscan you help me with my other one