3 years ago

A quadratic functions has zeros of 5 and -2. What could be the equation in factored form?

Mathematics

1 answer:

marusya05 [52]3 years ago

8 0

Hi,

A is the answer as : -2+2 = 0 and 5 -5 = 0

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Where T stands for the punches on the tea punch card and C for the punches on the coffee punch card.

Solving by substitution. Set T=C, then

$\begin{gathered} T=C \\ \Rightarrow2+7x=11+4x \\ \Rightarrow3x=9 \\ \Rightarrow x=\frac{9}{3}=3 \\ \Rightarrow x=3 \end{gathered}$

Thus, substitute the value of x=3 into the first equation,

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Thus, after 3 weeks, Josiah will have the same number of punches on each card, and he will have 23 punches on each card.

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