Exam 11: P Prerequisites

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Solve the equation x2+4=9xx^{2}+4=9 x by completing the square. Show all steps.

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x=92−1265,x=92+1265x=\frac{9}{2}-\frac{1}{2} \sqrt{65}, x=\frac{9}{2}+\frac{1}{2} \sqrt{65}

In standard form, write the equation of a circle with center (2, -6) and radius 9.

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(x−2)2+(y+6)2=81(x-2)^{2}+(y+6)^{2}=81

A projectile is launched straight up from the ground with an initial velocity of 352 ftsec\frac{\mathrm{ft}}{\mathrm{sec}} At what time(s) will the projectile be at least 1,536 feet above the ground?

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6 seconds through 16 seconds

Simplify the expression u2v−3(u3v)−1\frac{u^{2} v^{-3}}{\left(u^{3} v\right)^{-1}} Assume that the variables are not zero.

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 In the xy-plane, graph y=12x−2\text { In the } x y \text {-plane, graph } y=\frac{1}{2} x-2 \text { In the } x y \text {-plane, graph } y=\frac{1}{2} x-2

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Solve graphically: −3x3−2x2+4x−1=0-3 x^{3}-2 x^{2}+4 x-1=0

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Solve 3x-4>-2 algebraically.

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Complete the table of solutions for the equation y=2x−5 y=2 x-5 x y -2 3 -7 3

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Solve the inequality x2+3x−4≤0x^{2}+3 x-4 \leq 0 Express your answer in interval notation.

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Solve: x3+2x2+x≥0x^{3}+2 x^{2}+x \geq 0

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For the function f(x)=x2+5x−6f(x)=x^{2}+5 x-6 choose the viewing window that shows two intersections with the x -axis and all the points of the graph in between.

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Write the equation of a line through the point (-1,2) and perpendicular to the line with equation 2 x-3 y-5=0 . Write the equation in the general form.

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Solve 3(x+2)=5(2x-3)-7.

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In standard form, write the equation of a circle with center (-3, 4) and radius 7.

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Write the complex number (3−2i)2(3+2i)(5−i)\frac{(3-2 i)^{2}(3+2 i)}{(5-i)} standard form

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Find the equation of a line that has x-intercept 3 and y-intercept -5. Write the equation in slope-intercept form.

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For the function f(x)=x2+5x+6f(x)=x^{2}+5 x+6 choose the viewing window that shows two intersections with the x -axis and all the points of the graph in between.

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Find the equation of a line that contains (1, 3) and has slope -4. Write the equation in point-slope form.

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Name the algebraic property or properties illustrated by the equation. 2 x+3 y=3 y+2 x

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Draw the graph of y=2x2−x−3 y=2 x^{2}-x-3 . On the graph show the solutions to the quadratic equation 2x2−x−3=0 2 x^{2}-x-3=0 Directions: Show all work where appropriate. A graphing calculator may be necessary to answer some questions.

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