Instruction Active
Graphing a Quadratic Function Given in Factored Form
Try it
y
Plot the function
y= (x + 1)(x - 3) by following these steps:
X
-1
1
3
y
0
4
0
4
Step 1: Plot the x-intercepts of the function.
2
Step 2: Plot the point on the x-axis that is halfway between
the intercepts.
Step 3: Plot the vertex on the dashed line.
4.
-2
2
4
Step 4: Plot the y-intercept.
1-2
The correct points are shown