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4 years ago

Help me

Mathematics

1 answer:

Aliun [14]4 years ago

6 0

Answer:

2 Real Roots

Step-by-step explanation:

The discriminant (D) is found using the formula b^2+4ac for the equation ax^2+bx+c.

If D>0 there are two real roots, D=0 one real root and D<0 no real roots.

D = b^2+4ac

D = 10^2+4(-4)(-8)

D = 100+32*4

D = 100+128

D = 228

since 228>0

There are 2 real roots

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From this function, we can find that

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We can plug in our know values into the formula to get

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Then we can plug in our x-value to find the y-value of the vertex

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