1.3 because you divide 80 and 60
Based on what i have seen i believe your answer is going to be A.
Answer: y=-4x+14
Step-by-step explanation:
The slope (Mx)=-4
And b=14
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tip: make sure to reword it
ANSWER

EXPLANATION
The given function is:

Factor -3 for the first 2 terms.

We add and subtract the square of the coefficient of x.

Factor the perfect square trinomial.

The vertex form is:
