Refer to the table and graph below. How much does A Plus Plumbing cost 5 points for each hour of work, and what is the one-time fee? Explain or show your
reasoning.
Two plumbing companies charge money for each hour of work, plus a one-time fee.
A Plus Plumbing charges according
to this table:
time (hours)
cost (dollars)
1
140
4
320
6
440
Quality Plumbing charges
according to this graph:
250
200
cost (dollars)
150
100
50
6
ON
2 3 4 5
time (hours)
lo

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3

i hope this is what you were looking for.

see attached graph

134.6 us dollars

step-by-step explanation:

1 us dollar = 1.33 canadian dollars

so, 150 us dollars = 150 × 1.33 = $199.5.

in canada, the money mitchell spent = 20 canadian dollars.

remaining canadian dollars with him = 199.5 - 20 = 179.5.

after mitchell returned to us, he exchanged the remaining canadian dollars to us dollars.

179.5 canadian dollars = 179.5 × 0.75 = 134.6 us dollars.

f(x) is   are being squared

g(x) is   increasing by 2

h(x) is adding .25 each time

k(x) is taking the square root

f(x) and k(x) are exponential functions