ᴀɴsᴡᴇʀ:
<u>1.Example, x²-25 can be factored as (x+5)(x-5).</u>
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<u>2.This method is based on the pattern (a+b)(a-b)=a²-b², which can be verified by expanding the parentheses in (a+b)(a-b).</u>
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<u>3.When an expression can be viewed as the difference of two perfect squares, i.e. a²-b², then we can factor it as (a+b)(a-b). For example, x²-25 can be factored as (x+5)(x-5).</u>
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Answer:
y=(x-5)^2 - 6
Step-by-step explanation:
Subtracting the 5 to the x moves the parabola 5 units to the right. Putting the -6 at the end moves the parabola down 6 units.
Answers
:
a. what do variables x and y represent? use the phrase ‘is a function of’ to describe how the two quantities relate to each other.
answer: y is a function of the total cooking times Amber will need to prepare her dishes. x is a function of the certain number of minutes it will take to cook the turkey per pound.
b. what does the value 40 represent?
answer: how long the mac and cheese will cook
c. what does the rate of change represent?
answer: for every pound that the turkey weighs, you would have to cook it for 15 minutes
d. what is the total cooking time for just the turkey if it weighs 12 pounds? how do you know?
answer:
y = 15x + 40
y = 15(12) + 40
y = 180 + 40
y = 210 minutes
