Question

math help... question is inside

Answer 1

@welshfella

Answer 2

f(5)=75 so you have to find what is the function

Answer 3

and then once you find that you just multiply that value by 4 and you get your answer :)

Answer 4

does f=15?

Answer 5

yes

Answer 6

so 15x4=60 but thats not an anwser

Answer 7

f(x) = kx^2 where k is a constant
plug in x = 5 and f(x) = 75 to find k

Answer 8

wait sorry I got confused I didn't read the x^2 part hold on thats different

Answer 9

ok

Answer 10

f(x) = k*x^2
75 = k*(5)^2
75 = k*25
and then use PEMDAS backwards to find k

Answer 11

to find k divide both sides by 25

Answer 12

lol yes i said to use PEMDAS backwards

Answer 13

im so confused lol

Answer 14

what are you confused about? if you tell me I can help

Answer 15

we just have to fin the value of k first to the place into a new equation :) and then just use 4 into the equation and you get your answer :)

Answer 16

25k = 75

25k 75
--- = --
25 25

/
what is 75 / 25

Answer 17

is it 48?

Answer 18

yes^ that is the correct final answer

Answer 19

anwser is 48?

Answer 20

how did you get it?

Answer 21

yes :) after you plug in the 4 into the final equation you get 48
the final equation if 3x^4=3(4)^2=48 so you are correct :)

Answer 22

i put it a mathway calculator

Answer 23

lol

Answer 24

haha

Answer 25

lol nah you looked it up mathway doesn't answer like that with word in problems

Answer 26

but is ok we all have done that at some point in life :)

Answer 27

thats not really the way to learn math!

Answer 28

well if he saw the steps then he understood the process, people learn in different ways