Quadratics_Review.doc - Math 20-1 – Pre-calculus 11 Quadratic Functions Review Multiple Choice Questions Choose the single best response to each of

Quadratics_Review.doc - Math 20-1 – Pre-calculus 11...

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Math 20-1 – Pre-calculus 11 Quadratic Functions Review Multiple Choice Questions Choose the single best response to each of the following. Place your answer under PART A of the answer sheet provided. 1.The quadratic function mxy2would have its vertex at; A.),1(mB.),0(mC.),1(mD.),0(m 2.A quadratic function has a rangesuch that Ryy,4, with a domainRx. The number of x-intercepts of this function must be; A.0B.1C.2D.3 3. The graph shown to the right is of the function n m x x f 2 ) ( ) ( . The function n m x x g 2 ) ( ) ( is best described as; A. Sharing the same vertex and range as ) ( x f . B. Sharing the same vertex , but having a range R y n y , C. Having a different vertex then ) ( x f , but sharing the same range as ) ( x f . D. Having a different vertex then ) ( x f , and having a range R y n y , . 4.A rectangle has a width of x2, and a length of x4. The maximum areaof this rectangle must be; A.4 units2B.6 units2C.8 units2D.16 units2 5.A quadratic function with y-intercept at (0,20) has a minimumat 2 when 3x. When written in the form qpxay2)(, the value of amust be; A.–2B.2C.2D.2 1 1 10 2 f x 4 4 x
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6.Three functions, all of the form 2axy, are shown to the right.When the functions are listed in order from their smallest, to largestvalue of a, the order would be; A.)(),(),(xfxgxmB.)(),(),(xmxgxfC.)(),(),(xgxmxfD.)(),(),(xfxmxg 7.A quadratic function has x-intercepts at 3 4 and 3 2 . One factor of this function must be; A.43xB.32xC.23xD.34x 8.The graph shown to the right is of qpxy2)(. Thisgraph must have a y-intercept at; A.(0, 25)B.(0, 31)C.(0, 35)D.(0, 41) 9.The quadratic function mxky2)3(would have itsvertex at; A.),3(mB.),3(mC.),3(kD.),3(k 10.A quadratic function has is given by the equation mkxxf)()(. Which of the following is true? A.The function has a minimum at ),(mkB.The function has a maximumat ),(mkC.The function has a minimumat ),(mkD.The function has a maximumat ),(mk 11. The graph shown to the right is of ) ( x f . If ) ( x g is a reflection around the x-axis of ) ( x f , ) ( x g could be given by the function; A. 3 ) 2 ( ) ( 2 x x g B. 3 ) 2 ( ) ( 2 x x g C. 3 ) 2 ( ) ( 2 x x g D. 3 ) 2 ( ) ( 2 x x g 1 0 1 2 3 4 5 6 7 8 1 1 2 3 4 5 6 7 8 9 10 10 1 f x 8 1 x 1 0 1 2 3 4 5 6 7 5 4 3 2 1 1 2 3 4 5 5 5 f x 7 1 x 5 5 g x f x m x 5 5 x
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