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Delicious77 [7]
3 years ago
14

Which equation, when graphed, has x-intercepts at (8, 0) and (−2, 0) and a y-intercept at (0, −48)?

Mathematics
2 answers:
MakcuM [25]3 years ago
7 0

the answer is C.f(x) = 3(x − 8)(x + 2)

Leto [7]3 years ago
3 0

Answer:

f(x) = 3(x − 8)(x + 2)

Step-by-step explanation:

The roots are at x = 8 and x = -2.  This means factored form would include

y = (x-8)(x+2), with some number a as the leading coefficient.

Multiplying through, we have

y = x²+2x-8x-16

y = x²-6x-16

To have a y-intercept at -48, this means we multiply the function by 3; this gives us

y = 3(x-8)(x+2)

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Two consecutive integers have a sum of 75. Find the integers.
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Answer:

37 and 38

Step-by-step explanation:

let the consecutive integers be x-1 and x

If their sum is 75

x-1+x = 75

2x - 1 = 75

2x = 75+1

2x = 76

x = 76/2

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First integer = x - 1

First integer = 38-1 = 37

Second integer is 38

Hence the integers are 37 and 38

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When a number is increased by 2.8%, the result is 56. What is the original number to
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Answer:

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If a number is increased by 2.8%, then it is 102.8% of it's original number.

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54.47 rounds to 54.5.

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