IB Quadratics

 $f\left(x\right)=x^2-2x-8,\ x\in real\ numbers$  

What is point of the y-intercept of the graph of  $y=f(x)$  ?


Your answer should look like a point. Do NOT include spaces in your answer. 

 $f\left(x\right)=x^2-2x-8,\ x\in real\ numbers$  
Solve the equation  $f\left(x\right)=0$  . 


List your answers in numerical order seperated by a comma (",") and no spaces. 

 $f\left(x\right)=x^2-2x-8,\ x\in real\ numbers$  
Find the equation of the axis of symmetry of the graph of y=f(x). 


Your answer should be an EQUATION. Do NOT include any spaces. 

What is the value of  $h$  ?

What is the value of  $k$  ?

The function  $f$  can also be written in the form  $f\left(x\right)=\left(x+p\right)\left(x-q\right)$  . 

What is the value of p?

The function  $f$  can also be written in the form  $f\left(x\right)=\left(x+p\right)\left(x-q\right)$  . 

What is the value of q?

The function  $f$  can also be written in the form  $f\left(x\right)=\left(x+p\right)\left(x-q\right)$  . 

Find the point of the y-intercept of the graph of $f$ .


Your answer should look like a point. Do NOT include spaces in your answer. 

Let $f\left(x\right)=\left(x-3\right)\left(x+1\right)$  ,  $x\in$  real numbers.

What is the point of the y-intercept?

Your answer should look like a point. Do NOT include spaces in your answer.  

Let $f\left(x\right)=\left(x-3\right)\left(x+1\right)$  ,  $x\in$  real numbers.

What is/are the point of the x-intercept? 

Select all that apply. 

• (0,-3)

• (-1,0)

• (3,0)

• (1,-4)

• (1,0)