Use the given vertex to identify h & k and substitute the values into vertex form. Drag and drop the values below. Not all of the values will be used. y= -7(x___)^2___
vertex: (0,-3)
-0 +0 +3 -3

-8/2y-8=5/y+4-7y+8/y^2-16

we move all terms to the left:

-8/2y-8-(5/y+4-7y+8/y^2-16)=0

we can not solve this equation

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step-by-step explanation:

a'(12.5,11.25)

slope=(y1-y2)/(x1-x2)

answer: hence, function will be

explanation:

since we have given that

cost of a new textbook = $85

according to question, the resale value of a textbook decreases by 25% with each previous owner,

so, our function becomes,

here, y is the total value of the text book after x owners.

hence, function will be