Question

3. Given the equation y = (x + 1)(x - 5), write down everything you know about the function. Show
your reasoning, you will be graded on the strategies you use to find the key points.
x – intercepts:
vertex:
y - intercept:
What else do you know about
the function?

Answer 1

For the x-intercepts you want to set the equation equal to 0. y= (X + 1)(X - 5)= 0
X+1=0 | X-5= 0
-1 -1 | X+5 5
X = -1 | X = 5
those are your x intercepts