Question

Dada a função f(x) = 4x-7, determine

Answer 1

f(0)=4.0-7=0-7=-7

f(-3)=4.(-3)-7=-12-7=-19

f(1/4)=4.1/4 -7=4/4 -7 =1-7=-6

f(2/3)=4.2/3 -7 =8/3 -7= 8-21 / 3= -13/3

Answer 2

a) f(0)=4*0-7    f(0)=0-7    f(0)=-7

b) f(-3)=4*(-3)-7   f(-3)=-12-7    f(-3)=-19

c) f(1/4)=4*1/4-7  - f(1/4)=1-7   f(1/4)=-6

d) f(2/3)= 4*2/3-7    f(2/3)=8/3-7    f(2/3)=-13/3