MathAlgebra
Practice
Linear Functions Practice
Original questions interpreting slope, intercepts, tables, and linear models.
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Question 1 of 2
Question 1
Medium
Correct answerThe rental cost increases by $4.50 for each additional hour.
Explanation
In a linear model, the coefficient of the input is the rate of change. Here, each one-hour increase adds $4.50 to the cost.
Question 2 of 2
Question 2
Hard
Correct answer\(f(x)=-3x+4\)
Explanation
As \(x\) increases by \(3\), \(f(x)\) decreases by \(9\), so the slope is \(-3\). Using \((2,-2)\) gives \(-2=-6+b\), so \(b=4\).
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Questions to review
No mistakes this time. Excellent work.
- Question 1Interpret slope in contextMedium
- Question 2Build a linear function from a tableHard