Answer:
Step-by-step explanation:
You are given 2 variables. Plug in a number for one variable (the input variable), and get the answer (output variable).
Let: x = 5
Plug in 5 for x in the equation, and solve:
y = 7(x)
y = 7(5)
y = 35
When x = 5, y = 35
Let: x = 20
Plug in 20 for x in the equation, and solve:
y = 7(x)
y = 7(20)
y = 140
When x = 20, y = 140
Let: x = 39
Plug in 39 for x in the equation, and solve:
y = 7(x)
y = 7(39)
y = 247
When x = 39, y = 247.
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