Question

f(x) = 1 - 6x.
f(2x) can be expressed in the form a + bx.
Find the values of a and b

Answer 1

hi, what is this topic called

Answer 2

Functions probably

Answer 3

thanks i know this question was from oct, but are u doing it as well

Answer 4

Nope... But to talk through it a bit:

A function is where you input some value (eg, x, or 2x) and something is done to it:

INPUT ----> [FUNCTION] -----> OUTPUT

For the original function, f(x) = 1 - 6x:
if we input 10, the function becomes: f(10) 1 - 60, so, the result is -59.

So it follows that:

f(2x) = 1 - 6(2x) = 1 - 12x
a=1, b=12
hope this helps

Answer 5

oops, a=1, b=-12