Question

A phone company charges for service according to the formula y=18+0.03x, where x is the number of minutes talked, and y is the monthly charge, in dollars.

The slope in this equation is?


The slope's units are:
Minutes
Dollars per Minute
Dollars
Minutes per Dollar

Answer 1

y = 18 + 0.03x.....lets rearrange this
y = 0.03x + 18....this is in y = mx + b form where m is ur slope and b is ur y intercept.

so ur slope is 0.03....and it is representing dollars per minute

Answer 2

A general line is written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

We will see that the slope is:

0.03 dollars per minute.

Here we have the equation:

y = 18 + 0.03*x

Such that y is in dollars and x is in minutes.

For the general form, we know that the slope is 0.03

And the units of the slope must be the quotient between the units of y and the units of x, so we will have that the slope is:

0.03 dollars/minute

or 0.03 dollars per minute.

Then the correct option is the second one.

If you want to learn more, you can read:

https://brainly.com/question/18171816