At age 7, a boy competed in the high jump competition and managed a personal best of 3 feet. At age 11, the boy was jumping 5 feet. His coach decided that his progress in the high jump could be modelled by a linear equation. He let x represents the boy’s age and y represents the height of his jump. Write the equation described by the coach.
A. y = 7x+3
B. y = 2x + 7
C. y =1/2x −1/2
D. y = 2x + 2
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Answer:
1.A
Step-by-step explanation:
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