Quiz - Graphing Quadratics in Standard Form

Identify the y-intercept of the function

 $f\left(x\right)=2x^2+3x-4$  

• (0, 4)

• (0, -4)

• (4, 0)

• (-4, 0)

Identify the equation of the axis of symmetry for the function

 $f\left(x\right)=-x^2-4x+2$  

• x=4

• x=2

• x=-2

• x=-4

Identify the vertex of

 $f\left(x\right)=-x^2-4x+2$  

• (2, -10)

• (4, -30)

• (-4, 2)

• (-2, 6)

Identify the domain of

 $f\left(x\right)=-x^2-4x+2$  

• All real numbers

•  $x\ge0$  
  

•  $x\le6$  

•  $x\ge-2$  
  

Identify the range of

 $f\left(x\right)=-x^2-4x+2$  

• All real numbers

•  $y\le0$  
  

•  $y\le6$  

•  $y\le-2$  
  

Identify the range of the graph.

• $x\ge-2$

• $y\ge1$

• $x\le-2$

• $y\le1$

Identify the maximum value of

 $f\left(x\right)=-x^2-4x+2$  

•  $x=-2$  
  

•  $x=6$  
  

•  $y=6$  

•  $y=-2$  
  

Identify the maxiumum or minimum value of the graph.

• Minimum: y=1

• Maximum: y=1

• Minimum: x=-2

• Maximum: x=-2

On your paper, write the table of values, graph and solutions for the function

 $y=3x^2+2x-4$  .  Turn this into today's assignment.

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