Write a function to model the data. x −3 −1 1 3 5 y −16 0 8 8 0
1 answer:
Answer:
f(x) = -(x +1)(x -5)
Step-by-step explanation:
The zeros at x = -1 and x = 5 tell us we can write this quadratic function as ...
f(x) = a(x +1)(x -5)
for some scale factor "a".
When we put x=1 into the equation, we get ...
f(1) = a(1+1)(1-4) = -8a
But we know that f(1) = 8, so ...
8 = -8a
-1 = a . . . . . . divide by -8
Now, we can write the function as ...
f(x) = -(x +1)(x -5)
_____
If you like, you can expand this to ...
f(x) = -(x^2 -4x -5)
f(x) = -x^2 +4x +5 . . . . . "standard form"
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The purple pieces are 35 and total pieces is 32 if the Kenzie makes quilts from blue and purple pieces of fabric.
<h3>What is the ratio?</h3>
It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.
The question is incomplete.
The complete question is in the picture, please refer to the picture.
Total number of pieces = 3+5 = 8
So, the purple pieces = 5(5/8) = 35
Total pieces = 20/(5/8) = 4×8 = 32
Thus, the purple pieces are 35 and total pieces is 32 if the Kenzie makes quilts from blue and purple pieces of fabric.
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