Linear relationships

What the problems look like

A few statements from this skill. Answers, hints and worked solutions live in the practice session.

1. Warm-up

   Haley grows at the rate of 3 inches every year. If she is currently 20 inches tall, what will be her height after 10 years?

2. Warm-up

   A taxi fare increases at a constant rate as the trip distance increases. The fare is $y$ dollars for a trip of $x$ miles. When $x = 1$, $y = 20$, and when $x = 6$, $y = 30$. Find the rate of change of the fare, in dollars per mile.

3. Warm-up

   A taxi fare increases at a constant rate as the trip distance increases. The fare is $y$ dollars for a trip of $x$ miles. When $x = 2$, $y = 17$, and when $x = 8$, $y = 47$. Find the rate of change of the fare, in dollars per mile.

Problems shown under their original terms: MIT · Generated (template, solver-computed).