Question

(iv) If function f(x) = (3x + 4) then f(-3) is :
(a) 5
(b) 10
(c)-5
(d) 13​

Answer 1

Answer:

answer is (c)

Step-by-step explanation:

f (x) = (3x + 4)

we have to find f (-3) that means x = -3

so putting x = -3 , we get

f (-3) = (3× -3 + 4)

= -5

Hope it helps . have a good day.

Answer 2

Answer:

-5

Step-by-step explanation:

$3x + 4 = 0 \\ f(x) = - 3 \\ 3( - 3) + 4 = 0 \\ - 9 + 4 = 0\\ - 5 = 0$