Question

Help:)

Identify the vertex for the graph of y = 2x^2 + 8x - 3.

(2, 21)

(2, 17)

(-2, -11)

(-2, -27)

Answer 1

(-2, -11)

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https://www.desmos.com/calculator

Answer 2

Alright thanks :)

Answer 3

No prob! You have any more?

Answer 4

Yeah, can you help me out on this?

What are the approximate solutions of 2x^2 - 7x = 3 rounded to the nearest hundredth?

No real solutions

x ≈ -0.77 and x ≈ 7.77

x ≈ -0.39 and x ≈ 3.89

x ≈ˆ -3.89 and x ≈ 0.39

Answer 5

x ≈ -0.39 and x ≈ 3.89

so answer C

Answer 6

Thank you!

Answer 7

Not a problem!

Answer 8

http://www.wolframalpha.com/input/?i=+2x^2+%2B+8x+-+3