Quadratics Mini-Review

 Which of the following would be the vertex for $y=−x^2−2x+1$ ?

•  $\left(-3,-4\right)$  

•  $\left(3,-1\right)$  

•  $\left(3,1\right)$  

•  $\left(-1,2\right)$  

Which of the following graphs best represents the equation below? $f\left(x\right)=−2x^2−4x+2$  

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Which of the following would represent the x-intercept(s) for the following quadratic equation?

 $10x^2+5x−4=−2$  

•  $\left(2.329,0\right)$  and  $\left(−1.472,0\right)$  

•  $\left(−0.6,0\right)$  and  $\left(2,0\right)$  

•  $\left(−3.742,0\right)$  and  $\left(3.742,0\right)$  

•  $\left(0.262,0\right)$   and  $\left(−0.762,0\right)$  

Factor the trinomial below completely. $15x^3+69x^2−126x$  

•  $3x(5x−7)(x+6)$  

•  $3(5x+7)(x−6)$  

•  $3x(5x+2)(x−21)$  

• Not factorable

Which graph below matches up with the equation:

 $y=-\frac{1}{5}(x+6)(x+1)$  

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Which of the following will have the same y-intercept as the quadratic equation below?

 $f\left(x\right)=2x^2+14x+24$  

•  $f\left(x\right)=2\left(x+4\right)\left(x+3\right)$  

•  $f\left(x\right)=2\left(x-4\right)\left(x-3\right)$  

•  $f\left(x\right)=2\left(x+6\right)\left(x+3\right)$  

•  $\left(x\right)=-2\left(x-1\right)\left(x+3\right)$  

Which of the following will have the same axis of symmetry as the equation below?

 $y=-\frac{1}{4}\left(x-6\right)\left(x+2\right)$  

•  $y=x^2-6x+5$  

•  $y=x^2-4x-4$  

•  $y=x^2-2x-1$  

•  $y=x^2-2x+1$  

Simplify:
 $i^{111}$  

•  $i$  

•  $-1$  

•  $-i$  

•  $1$  

Factor completely:

 $3x²+5x-12$  

•  $(3x+4)(x-3)$  
  

•  $(3x-4)(x+3)$  
  

•  $(3x+3)(x-4)$  
  

•  $(3x-3)(x+4)$