3 years ago

This graph represents a quadratic function. What is the value of a in this function’s equation? A. 1 B. -2 C. 2 D. -1

Mathematics

1 answer:

DanielleElmas [232]3 years ago

8 0

Answer:

The answer is B

Step-by-step explanation:

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Let assume that $\sqrt7$ is a rational number. Therefore it can be expressed as a fraction $\dfrac{a}{b}$ where $a,b\in\mathbb{Z}$ and $\text{gcd}(a,b)=1$ .

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This means that $a^2$ is divisible by 7, and therefore also $a$ is divisible by 7.

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Analogically to $a^2=7b^2$ ------- $b^2$ is divisible by 7 and therefore so is $b$ .

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A container holds 16 pints of lemonade. How much is this in gallons

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