Question

i need help with study island :(

Answer 1

here is one

Answer 2

you need 3 numbers \(T(2)\), \(T(4)\) and \(4-2\)

Answer 3

\[4-2=2\] is the easy one
do you know how to find the others?

Answer 4

thats the part im confused on :( i asked my teachers but they never explained it :(

Answer 5

can ypu explain it ?

Answer 6

to find \(T(2)\) for \(T(x)=(x-9)^2\) replace \(x\) by \(2\) and compute
\[T(2)=(2-9)^2\]

Answer 7

similarly
\[T(4)=(4-9)^2\]

Answer 8

once you get those numbers, the answer you are looking for is
\[\frac{T(4)-T(2)}{4-2}\]

Answer 9

ok so the first i do is solve the the stuff in the parenthesis? right

Answer 10

yes
i would call it "subtract" but i guess "solve" works as well

Answer 11

i will do the first one, you can do the second one
\[T(x)=(x-9)^2\] so
\[T(2)=(2-9)^2=(-7)^2=49\]

Answer 12

alright thanks

Answer 13

yw

Answer 14

so its (-5)\[(-5)^{2}\]

Answer 15

what is \((-5)^2\)?

Answer 16

is equal to -10 right

Answer 17

sorry

Answer 18

oh no
don't double it, square it

Answer 19

\[(-5)^2=(-5)\times (-5)\]

Answer 20

whoops sorry -25

Answer 21

two minus signs makes it positive

Answer 22

ok thanks