Question

If s(x) = 2 – x2 and t(x) = 3x, which value is equivalent to s(t(-7))

–439
–141
153
443

Answer 1

first you need to find the s(t(x)).

Answer 2

plug in 3x instead of x, into 2-x²

Answer 3

u get?

Answer 4

-7

Answer 5

@SolomonZelman

Answer 6

s(x) = 2 – x²

correct?

Answer 7

correct

Answer 8

ok, if I wanted to find s(A) wat would I do?

Answer 9

s(A)? I dont know

Answer 10

s(x)=2-x²
s(A)=2-(A)²

just sub A for x

Answer 11

what if I wanted to find s(3), what would I do?

Answer 12

sub x for 3?

Answer 13

yes sub 3 for x

Answer 14

s(x)=2-x²

s(3) = ?

Answer 15

-7?

Answer 16

right?

Answer 17

yes

Answer 18

so

s(x)=2-x²

what is s(3x) ?

Answer 19

sorry back was helping my dad

Answer 20

2-3x^2?

Answer 21

i am helping another student too, so it's ok

Answer 22

s(3x)=2-(3x)²
like this

Answer 23

okay haha

Answer 24

s(x-3)=?

Answer 25

x

Answer 26

ugghh im confused

Answer 27

@SolomonZelman