Quadratics Review

If given the equation

  $y\ =\ 3\left(x+5\right)^2\ -4$  

what is the vertex of the parabola?

• (5, -4)

• (-5, -4)

• (-5, 4)

• (5, 4)

What is the axis of symmetry for the following quadratic function: 

 $f\left(x\right)=\frac{1}{2}\left(x\ -\ 4\right)^2\ +\ 3$  

• x = 4

• x = -4

• x = 3

• y = 4

• y = 3

Which of the following is the correct equation for the given graph?

• f(x) = (x - 2)² - 1

• f(x) = (x + 2)² - 1

• f(x) = -(x + 2)² - 1

• f(x) = -(x - 2)² - 1

 $f\left(x\right)=x^2+3$  

What is the domain of the function ?

•  $\left(-\infty,\ \infty\right)$  

• x > 3

• x < 3

•  $x\ge3$  

Which equation is graphed above?

• $y=-\left(x-1\right)^2+4$

• $y=\left(x-1\right)^2+4$
  

• $y=-\left(x-4\right)^2+1$
  

• $y=\left(x-4\right)^2+1$
  

Which equations matches the graph above?

• $h\left(x\right)=\left(x+1\right)^2-4$

  
  

• $h\left(x\right)=-\left(x+1\right)^2-4$
  

• $h\left(x\right)\ =\ \left(x+4\right)^2-1$
  

• $h\left(x\right)=-\left(x+4\right)^2-1$
  

When did the ball reach its maximum height? Choose the key feature and the answer.

• y-intercept, 3 secs

• x-value of the vertex, 4 secs

• y-value of the vertex, 5 secs

• y-intercept, 0 secs

How high was the ball when it was thrown? Choose the key feature and the answer.

• y-intercept, 0 feet

• y-intercept, 3 feet

• x-value of the vertex, 4

• y-value of the vertex 5

What was the height of the ball at 1 second?

• 3 feet

• 5 feet

• 4 feet

• 0 feet

When did the water reach its maximum height? Choose the key feature and the answer.

• x-value of vertex, 2 seconds

• y-value of vertex, 9 seconds

• y-intercept, 0 seconds

• x-intercept, 3.8 seconds