Question

Given f(x)=3-4x. Fill in the table and sketch the graph.

Answer 1

F (x) = 3-4x

For each value of x given, replace it on the function and solve it:

x= -6 ; F (-6)= 3-4(-6) = 3+24 = 27

x=-3 ; F(-3) = 3-4(-3)= 3+12 = 15

x= 0 ; F (0) = 3-4(0)= 3

x=1 ; F (1) = 3-4(1)= 3-4 = -1

F(x) = -5 ; -5=3-4x

-5-3=-4x

-8 =-4x

-8/-4= x

2 =x

x=2

Now, set the points in the graph