The point (2,8) is on the graph of f(x) = x^3. What is the value of b if the point (0.5,8) is on the graph of f(bx)?

Question

A. 4
B. 0.5
C. 1
D. 2.5

In which of the functions is f(-x) = f(x)?
A. Y = sin(x)
B. Y = x
C. Y = x^2
D. Y = x^1/3

Answer 1

so 8 =2^3 what else is new?
f(bx) = b^3x^3
8 = b^3 .5 ^3
.5 b = 2
b = 4

Answer 2

(-anything)^2 = anything^2

Answer 3

So what’s the answer for 5?

Answer 4

5 what? The answer to the second one is square it

Answer 5

I meant 2. Is y = x^2?

Answer 6

Yes (-15)^2 = 15^2

Answer 7

any even integer power will do

Answer 8

for example (-5)^-2 = 5^-2
because
1/25 = 1/25

Answer 9

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