Question

What is the value of y when x = 20?
Equation y = 5.2x. Over top of a table with column 1 heading x and values 0, 1, 10, 20 and column 2 heading y and no values showing.

A.
10.4

B.
25.2

C.
100.4

D.
104

Answer 1

y = 5.2x (when x = 20)
sub in 20 for x
y = 5.2(20)
y = 104

so when x = 20, y = 104