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anonymous

  • one year ago

Can someone help explain how to find the discriminants for these questions please? 4. What is the possible discriminant of the graph? answers: A) -13 B) zero C) 16 D) 21 5.What is the possible discriminant of the graph? answers: A) -15 B) zero C) 17 D) 25 I will show the graphs

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  1. anonymous
    • one year ago
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    4.

  2. anonymous
    • one year ago
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    5.

  3. campbell_st
    • one year ago
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    the 1st graph is positive definite , that means the value of y is always positive no matter what value of x is input. so how does this match to the discriminant positive definite or negative definite parabola have a discriminant < 0 for a parabola that only touches the x-axis, doesn't cut the axis, these have a repeated root. So the discriminant = 0 where a curve cuts the x-axis twice these have a discriminant > 0 so hopefully this information allows you to match the curve to the discriminant value.

  4. anonymous
    • one year ago
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    Thank you

  5. campbell_st
    • one year ago
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    is the discriminant > 0 and the value is a square number, then the x- intercepts are whole numbers.

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