Question

Tammy and Leslie are best friends, and
for the past five years they have been
keeping track of their heights. Tammy
can model her height using the
equation, y = 2.2x + 35.5, where y
represents her height at x years of age.
Leslie plotted her height versus age on
the graph shown below.

At the age of 9, who was taller?

Answer 1

Tammy was taller at age 9, as she was 3.68 inches taller than Leslie.

Equations

Given that Tammy can model her height using the equation, y = 2.2x + 35.5, where y represents her height at x years of age, while Leslie measured 50 inches at age 9, to determine who was taller at that age one must perform the following calculation:

• Leslie = 50
• Tammy = 2.2 x 9 + 35.5 = 18.18 + 35.5 = 53.68

Therefore, Tammy was taller at age 9, as she was 3.68 inches taller than Leslie.

Learn more about equations in https://brainly.com/question/10413253

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