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7 May, 08:32

A system of equations is shown below.

y = 2x2 - x - 2

y = x2 + 3x - 5

What is the largest value of y in the solution set of this system?

How do I solve these equations?

+1
Answers (2)
  1. 7 May, 10:07
    0
    Answer is 13.

    Step-by-step explanation:

    EQ 1: y = 2x^2-x-2

    EQ2: y = x^2+3x - 5

    Set the two equation equal to each other:

    2x^2-x-2 = x^2+3x - 5

    Simplify:

    x^2 - 4x + 3 = 0

    (x - 3) (x - 1) = 0

    Solutions:

    x = 3 and x = 1

    Plug these values into each of the original equations and see which on gives you the highest value.

    Solution set:

    y={13, - 1, 13, - 1}

    Answer is 13
  2. 7 May, 10:34
    0
    the first equation the y intercept is - 2
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