Applying and analysing functions

Identify the y-intercept(s) of

 $f\left(x\right)=\frac{x+5}{x^2+3x+2}$  

•  $y=\frac{5}{2}$  

•  $y=\frac{5}{6}$  
  

•  $y=-5$  
  

•  $y=-3$  

what is the zero of a function also known as?

• zero the hero

• hole

• y-intercept

• x-intercept

What is the x- and y- intercept of $\frac{5x-10}{x^2-4}$  

•  $x-\ int\ \left(5,\ 0\right)\ ;\ y\ -int\ \left(0,\ \frac{5}{2}\ \right)$  

•  $x-int\ \left(-2,\ 0\right)\ ;\ y-int\ \left(0,\ \frac{5}{2}\right)$  

•  $x-int\ :\ none\ ;\ y-int\ \left(0,\ \frac{5}{2}\right)$  

•  $x-int:\ none\ ;\ y-int:\ none$  

What are the y-int (s) of this function?

Select all the apply

 $f\left(x\right)=\frac{4x^5\left(x+9\right)}{x^2\left(x-3\right)}$  

• ( 0 , -12 )

• ( 0 , -9 )

• Undefined - None

• ( 0 , 0 )

• ( 0 , 3 )

Identify the y-intercept.

• $\frac{1}{9}$

• $-\frac{1}{9}$

• 0

• 9

X-intercepts are given by..

• The zeros of the numerator

• The zeros of the denominator

• The value of the function when x=0

• The ratio of the leading coefficients in the numerator and denominator

• (3, 0)

• (0, 3)

• (6, 0)

• (0, 6)

• No x-intercepts

What is/are the x-intercept(s) for: $f\left(x\right)=\frac{x^2+8x+15}{x^2+4x-5}$  

• (-3,0) and (-5,0)

• (3,0) and (5,0)

• (-5,0) and (0,1)

• (5,0)

• (-3,0)

• no solution

• 0

• 6

• -6