Question

If f(x) = 3x + 7 and g(x) = 5x – 2 then (f+g)(x) = 8x+5
TRUE OR FALSE

Answer 1

(f+g)(x) is the same as f(x) + g(x)

Answer 2

so all you're doing is adding the two functions f(x) and g(x)

which really the same as adding 3x+7 to 5x-2

Answer 3

Okay, so then what?

Answer 4

add the two expressions and tell me what you get

Answer 5

okay
8x -9

Answer 6

f(x) + g(x) = (3x + 7) + (8x + 5)
can you simplify this?

Answer 7

i think so

Answer 8

to add 3x+7 to 5x-2, you just combine like terms

3x+5x = ??
7 + (-2) = ??

Answer 9

8x + 5

Answer 10

correct

Answer 11

so them claiming that

If f(x) = 3x + 7 and g(x) = 5x – 2 then (f+g)(x) = 8x+5

is a true statement

Answer 12

thank you

Answer 13

you're welcome