Question

Evaluate f(x)=2x+5 when x=0, x=1, x=5

Answer 1

when x = 1
f(0) = 2(0) + 5
f(0) = 0 + 5
f(0) = 5

when x = 1
f(1) = 2(1) + 5
f(1) = 2 + 5
f(1) = 7

when x = 5
f(5) = 2(5) + 5
f(5) = 10 + 5
f(5) = 15

Answer 2

f(0)=5

f(1)=7

f(5)=15

Explanation:

f(0)=2x+5

=2(0)+5

=5

f(1)=2x+5

=2(1)+5

=2+5

=7

f(5)=2x+5

=2(5)+5

=10+5

=15