Equations from Word Problems
1 answer:
Answer:
Step-by-step explanation:
First, we know that for every hour for labor he charges $25
So, let x = # of hours
Thus, 25x
Second, he charges $50 for a house call. This does not depend on the # of hours, and serves as our "Starting Pay"
So, we combine and get F(x)=25x+50, where F(x) is the amount he charges
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Answer:
Option B. $900
Step-by-step explanation:
Let
y ----> the value of the car
x ----> the time in years
we know that
The linear function in slope intercept form is equal to
where
m is the slope or the depreciation rate
b is the y-intercept or initial value of the car
we have
The y-intercept or initial value is equal to
we have the ordered pair (5,500)
substitute the value of x and the value of y of the ordered pair in the linear equation and solve for m
Is negative because is a decreasing function
The linear equation is equal to
therefore
It would depreciate $900 each year.