SOLUTION: Mark starts a rock climb when he is 1 mile above sea level. He can climb at the rate of 1.5 miles per hour. Which of the following functions would express Mark's height above sea l

Algebra ->  Coordinate-system -> SOLUTION: Mark starts a rock climb when he is 1 mile above sea level. He can climb at the rate of 1.5 miles per hour. Which of the following functions would express Mark's height above sea l      Log On


   

Question 246792: Mark starts a rock climb when he is 1 mile above sea level. He can climb at the rate of 1.5 miles per hour. Which of the following functions would express Mark's height above sea level over time?
f(x)=1.5x
f(x)=1+1.5x
f(x)=2.5x
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


If he starts at 1 mile and goes 1.5 miles per hour, after 1 hour he will be 1 plus 1.5 miles = 2.5 miles. After 2 hours he will be 1 plus 3 = 4 miles.

Evaluate your first choice:







Neither one of the results is correct.

Evaluate your second choice:







Both results are correct.

Evaluate the third choice:







One result correct. One result incorrect.

So what do you think the answer is?

John