Question

For each function, find f(-2), f(-0.5), and f(3).

1. f(x)=-x+4

2. f(x)= 3/8x-3

Answer 1

f(-2)=-2+4, f(-0.5)=-0.5+4, f(3)=-3+4

Answer 2

f(x) = -(-2) +4
f(x) = -(0.5) + 4
f(x) = -(3) +4

Answer 3

Justin you forgot that x is multiplied with -1. :)

Answer 4

f(-2)=3/8*-2-3, f(-0.5)=3/8*-0.5-3, f(3)=3/8*3-3

Answer 5

dammit shamil. xD sorry

Answer 6

for the second one.
f(x) = (3/8)(-2) -3
f(x) = (3/8)(0.5) -3
f(x)= (3/8)(3) -3

Answer 7

its not 3/8x it's (3/8)x

Answer 8

So on number 1, the (-0.5) becomes -(0.5) ? @shamil98

Answer 9

Oh, a typo -(-0.5) = 0.5

Answer 10

negative x negative = positive
so for the first set the product of the multiplied values is positive.

Answer 11

Thank you both very much (: