Question

An electrician charges a fee of $55 plus 40 per hour. Let y be the cost in dollars of using the electrician for X hours find the slope intercept form of the equation.

Answer 1

y = 40x + 55

Explanation:

Answer 2

y = ($40/hour)*x + $55

Explanation:

Total cost, y, is the sum of the $55 fee plus the number of hours, x, time ($40/hour):

y = $55 + ($40/hour)*x

Rewrite in the form of a slope intercept form of y = mx + b, where m is the slope and b is the y-intercept (the value of y when x = 0).

y = ($40/hour)*x + $55

The slope is 40 and the y-intercept is 55