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scZoUnD [109]
3 years ago
11

Is this a function or not a function​

Mathematics
1 answer:
Lemur [1.5K]3 years ago
3 0

Answer:

It is a function

Step-by-step explanation:

The Vertical line test

Draw a vertical line. If it touches the graph one time, it's a function.

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Solve 2x2 + 26 = 0 to identify the roots.
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Answer:

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Step-by-step explanation:

To find the roots, factor and set equal to 0 or use the quadratic formula. This quadratic equation does not factor and must be solved using the quadratic formula.

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where a = 2, b=0, and c=26

x=\frac{0+/-\sqrt{0^2-4(2)(26)} }{2(2)} \\x=\frac{+/-\sqrt{-208)} }{4} \\x=\frac{+/-i\sqrt{16*13)} }{4}\\x=\frac{+/4i\sqrt{13} }{4}\\x=+/-i\sqrt{13}


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