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Piecewise Functions: Mastery Test
1
Select the correct texts in the table.
Consider function f.
-1:2 +65 + 36, 1 <-2
f(I) = 41 - 15,
-2 35-4
I>4
Are the statements about the graph of function ftrue or false?
true
false
true
false
The graph crosses the y-axis at 0,-15).
The graph has a point of discontinuity at I = -2.
The graph is increasing over the interval (4,00).
The graph is decreasing over the interval (–12, -2).
The domain of the function is all real numbers.
true
false
true
false
true
false
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answer: b.

step-by-step explanation:

the y coordinate for point b is 0, and answer b is the only one with that y coordinate.

i dont know men

step-by-step explanation:

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: