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5 March, 16:43

Which of the following describes the transformation of the graph y=x^2 in graphing y=-x2-5?

a. reflect over the x axis and shift down 5

b. reflect over the y axis and shift down 5

c. reflect over the x axis and shift left 5

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Answers (2)
  1. 5 March, 17:28
    0
    Option a. is the correct option.

    Step-by-step explanation:

    In the question given graph is y = x² which is transformed into y = - x²-5

    then we can interpret the graph as below

    1). y = - x²-5 is a function of a parabola.

    2). Since the graph is in the form of y = ax²+b

    Now if we reverse/reflect the graph on x axis then a becomes - a.

    Therefore y = - x² - 5 gets reflected over the x-axis.

    3) Since b represents the y-intercept, if it's negative then graph is shifted down and for positive b graph is shifted upwards. Here - 5 shows the shift of 5 downwards.

    Therefore option a is the correct option.
  2. 5 March, 18:07
    0
    Option a
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