Question

Helen is 54 inches tall and grows at a rate of 1.2 inches per year. Which of these equations models this situation?

Answer 1

For this case, the first thing we must do is define a variable:
x: number of years
We now write the equation that represents this problem.
We have then:
y = 1.2x + 54
Answer:
An equation that models this situation is:
y = 1.2x + 54