Question

For each function,find f(-2),f(-1/2),f(3) and f(7)

f(x)=-3x+1.8

Answer 1

f(-2)=3(-2)+1.8
f(-1/2)=3(-1/2)+1.8
f(3)=3(3)+1.8
f(7)=3(7)+1.8

Answer 2

f(-2) = 7.8
f(-1/2) = 3.3
f(3) = -7.2
f(7) = 19.2

Answer 3

f(7) =-19.2

Answer 4

ya, it is negati9ve, my bad.

:-)