A hiking club recorded the length x, in miles, and the... | SAT Two-variable data: models and scatterplots Question, Answer Explained

Question bank / Two-variable data: models and scatterplots

Math · Problem-Solving and Data AnalysisEasy

A hiking club recorded the length $x$ , in miles, and the completion time $y$ , in minutes, for $40$ hikes. The line of best fit for the data is $y = 22x + 15$ . Based on the line of best fit, what is the predicted completion time, in minutes, for a hike that is $6$ miles long?

Student-produced response: enter your answer.

Show answer and explanation

Answer: 147

Substitute $x = 6$ into the equation: $y = 22(6) + 15 = 132 + 15 = 147$ minutes.

Stopping at $22(6) = 132$ leaves out the $15$ minutes in the equation.

Ask Owl about this question Next question

Got it wrong? On SAT Owl, Owl looks at the answer you chose and explains the exact mistake, then gives you similar questions until it sticks. Get your predicted SAT score free, or take a free full-length practice test.