Question

Find the value of f (3)

y =f(x)



Please help

Answer 1

f(3) = 7

Explanation:

locate x = 3 on the x- axis, then go vertically up to meet the line at (3, 7) , so

f(3) = 7

Answer 2

f=7/3

Explanation:

from the figure it can be deduced that x=3 and

y=7

so: y=f(x) → 7=f(3)

put f to the first member: 7=3f → 3f=7 → f=7/3

(I hope that's right)