The slope of a line is a number we can calculate using any two points on the line. To find the slope, divide the____ distance be
1 answer:
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Answer:
a. $45.54; b. $51.42; c. See below
Step-by-step explanation:
a. 193 min
Service charge = $40.00
1st 100 min @ 0.021 = 2.10
Next 93 min @0.037 = <u> 3.44 </u>
Total = $45.54
b. 317 min
Service charge = $40.00
1st 100 min @ 0.021 = 2.10
2nd 100 min @ 0.037 = 3.70
117 min @ 0.048 = <u> 5.62</u>
Total = $51.42
c. Piecewise function
The charge is
- $40.00 + 0.021t if t ≤ 100
- $42.10 + 0.037(t - 100) if 100 < t ≤ 200
- $45.80 + 0.048 (t - 200) if t > 200
which we can write like this:
ANSWER
b=1, c=81, and d=9.
EXPLANATION
The given function is:
This function is the same as:
To find the inverse of this function, we interchange x and y.
Solve for y:
Take square root of both sides:
Hence,
b=1, c=81, and d=9.