Question

Chris swims every day at the gym. She can swim 2 miles in an hour. Let y equal the number of miles and x equal the total time in hours. Which equation shows how many miles Chris can swim in x hours?A. y = x+1B. Y= 2x + 1C. y = 2xD. Y= X-2

Answer 1

Solution:

Given:

The rate at which Chris swims is 2 mph.

This represents the slope (m).

Using the slope-intercept form of the linear equation;

y = mx + b

where, b = 0, m = 2

Hence;

$\begin{gathered} y=2x+0 \\ y=2x \end{gathered}$

Therefore, the correct answer is OPTION C.