Question

And electrician charges a fee of $45 plus $30 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

Answer:

$y=30x+45$

Step-by-step explanation:

Let

x ----> the number of hours

y ----> the cost in dollars

we know that

The linear equation in slope intercept form is equal to

$y=mx+b$

where'

m is the slope or unit rate

b is the y-intercept of initial value

In this problem

we have

The slope is equal to

$m=\ 30\ per\ hour$

The y-intercept or initial value is equal to

$b=\ 45$

therefore

The linear equation in slope intercept form is equal to

$y=30x+45$