Answer:
Function 1 is linear
Step-by-step explanation:
A linear is a straight line on the graph.
A line means divided by
So basically if it was 1/2, then it would be 1 divided by 2.
P. S. 1 divided by 2 is not the answer I'm just explaining what a line is
4x + 8y = 40
4x + 8(0.8) = 40
4x + 6.4 = 40
40 - 6.4 = 33.6
33.6 / 4 = x
33.6 / 4 = 8.4
The answer option 2, 8.4