Question

The function D =25+0.3 X represents the daily dental charge D in dollars for X miles driven

Answer 1

See Explanation

Explanation:

Given

`D = 25 + 0.3X`

The question has missing details; as what's required is not stated.

However, since it is a linear equation, possible questions could be

1. Determine the slope

2. Determine the D-intercept

3. Calculate the amount in dollars for (say) 5 miles

An equation is represented as:

`D = b + mx`

Where

`b = D\ intercept`

`m = slope`

By comparing:
`D = 25 + 0.3X` to
`D = b + mx`

`b = 25` and
`m = 0.3`

This means that the slope is 0.3 and the d intercept is 25

To get the amount for 5 miles, we substitute 5 for x in
`D = 25 + 0.3X`

`D = 25 + 0.3 * 5`

`D = 25 + 1.5`

`D = 26.5`

The cost of 5 miles is $26

Make use of the above explanation to solve the question