I forgot how to solve these kind of question, I used to but all well.
But here is a calculator specifically for this kind of question
https://www.symbolab.com/solver/ellipse-equation-calculator

6 0

4 years ago

An electrician charges a set fee of $100 for every house call and then charges an additional hourly rate. One day, the electrici

DIA [1.3K]

Answer:

$C=75t+100$

Step-by-step explanation:

Let

C(t) ---->the total cost of the electrician's services in dollars

t ---> the number of hours

we know that

The linear function in slope intercept form is equal to

$C=mt+b$

where

m is the slope or unit rate

b is the y-intercept or initial value

In this problem we have

the y-intercept is equal to

$b=\$100$ ----> set fee

we have the ordered pair (2,250)

substitute the given values

$250=m(2)+100$

Solve for m

$2m=250-100$

$2m=150$

$m=\$75\ per\ hour$

The linear function is equal to

$C=75t+100$

4 0

3 years ago

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