A quadratic function is of the formf(X) = ax-+ bx + c and when we set f(x), or y, equal to zero we call it a quadratic equationax + bx +c = 0. When we set y equal to zero and solve for x we are finding the x- intercepts. Here are three quadratic equations: y = x2- 2x – 1 y = - 3x²+12x – 12 y = x2-6x + 13 Using your graphing calculator find the x-intercepts, y-intercepts, and the maximum or minimum values of the quadratic equations. • Confirm your answers using the Quadratic Formula program. • Last, since your calculator only gives real number approximate answers for the zeroes solve these by hand to provide us with exact answers (might be complex numbers).

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ISBN:9780470458365
Author:Erwin Kreyszig
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A quadratic function is of the form (X) = ax+ bx + c and when we set f(x), or y, equal to zero we call it
a quadratic equationax + bx +c = 0. When we set y equal to zero and solve for x we are finding the x-
intercepts. Here are three quadratic equations:
y = x2- 2x – 1
y = - 3x2+ 12x – 12
y = x2- 6x + 13
Using your graphing calculator find the x-intercepts, y-intercepts, and the maximum or minimum
values of the quadratic equations.
• Confirm your answers using the Quadratic Formula program.
Last, since your calculator only gives real number approximate answers for the zeroes solve these by
hand to provide us with exact answers (might be complex numbers).
Transcribed Image Text:A quadratic function is of the form (X) = ax+ bx + c and when we set f(x), or y, equal to zero we call it a quadratic equationax + bx +c = 0. When we set y equal to zero and solve for x we are finding the x- intercepts. Here are three quadratic equations: y = x2- 2x – 1 y = - 3x2+ 12x – 12 y = x2- 6x + 13 Using your graphing calculator find the x-intercepts, y-intercepts, and the maximum or minimum values of the quadratic equations. • Confirm your answers using the Quadratic Formula program. Last, since your calculator only gives real number approximate answers for the zeroes solve these by hand to provide us with exact answers (might be complex numbers).
Expert Solution
Step 1

The given quadratic functions are:

y=x2-2x-1y=-3x2+12x-12y=x2-6x+13

Find intercepts and relative maximum or minimum using graphing calculator.

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