The function notation f(x)=2x-4 means replace the x on the right-hand side with the value in parentheses on the left.
For example, f(y)=2y-4; f(4)=2(4)-4=4; f(1)=2(1)-4=-2 and so on.
The same principle applies to g(x), for example
g(2)=4(2^2)-3=13,
g(x+1)=4(x+1)^2-3=4(x^2+2x+1)-3=4x^2+8x+4-3=4x^2+8x+1
and so on.
(g of f)(x) is another way to write g(f(x)), therefore
g(f(x))
=g(2x-4) [because f(x)=2x-4
=4(2x-4)^2-3
=4(4x^2-16x+16)-3
=16x^2-64x+64-3
=16x^2-64x+61
Answer:
67% discounted
26
555.2
Step-by-step explanation:
39 - 13 = 26
48 x 1.15 = 55.2
Answer:
y=78
Step-by-step explanation:
y=13(x-4) 2-4
y=(13-52) -2
y=(-24+104)
y=78
Answer:
51 degrees
Step-by-step explanation:
gave up on delta math
