I really need help can someone please answer? The points (0,3), (1,8), (2,17), and (3,30) are on the graph of a function. Which o

Question

I really need help can someone please answer?

The points (0,3), (1,8), (2,17), and (3,30) are on the graph of a function. Which of the following equations represents that function?
a.2x^{2}-3x+3
b.2x^{2}+3x-3
c.2x^{2}-3x-3
d.2x^{2}+3x+3

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Kim Cúc 4 years 2021-08-21T20:59:33+00:00 1 Answers 14 views 0

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  1. huyenthanh
    0
    2021-08-21T21:00:37+00:00
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    Answer:

    • D. 2x^{2}+3x+3

    Step-by-step explanation:

    Use the ordered pairs to determine the correct function

    Point (0, 3)

    • x = 0 and y = 3- options A or D, the others result in y = -3

    Point (1, 8)

    x = 1, y = 8 – option A.

    • 2*1^2 – 3*1 + 3 = 2 – incorrect

    It leaves us with option D

    • 2*1^2 +3*1 + 3 = 8 – correct

    Check other two pairs as well:

    • 2*2^2 + 3*2 + 3 = 17
    • 2*3^2 + 3*3 + 3 = 30

    This confirms option D is correct

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )