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SAT Math Practice: Parabolas Practice 01

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What are the zeros of the parabola give by $y=2x^2 -6x-8$ ?

${-4,2}$

${0,1}$

${-1,4}$

${-5,-3}$

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What is the vertex of the function $y=(x+3)(x-5)$ ?

$(1,-16)$

$(3,-5)$

$(-3,5)$

$(-2,8)$

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What is the vertex form of the function $x^2 -12x +64$ ?

$y=(x+6)^2 +28$

$y=(x+6)^2 +100$

$y=(x-6)^2 +28$

$y=(x-6)^2 +100$

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Which of the following is an equivalent form of the function $y=x^2 -2x+3$ ?

$y=(x-3)(x+1)$

$y=(x-2)(x-1)$

$y=(x-1)^2 +2$

$y=(x-1)^2 +4$

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Which of the following is an equivalent form of the function $y=x^2 +x -30$ ?

$y=(x-5)(x+6)$

$y=(x+5)(x-6)$

$y=(x-1)^2 -12$

$y=(x-1)^2 -7$

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