C2 U5 Investigation 1.2: Designing Parabolas
Designing Parabolas of the form: y=a(x+m)(x+n).
When designing these parabolas, you're taking into account the two linear factors that determine the x-intercepts (x+m) and (x+n), and the vertex. Once you've established the x-intercepts, you need to figure out with a-value will give you the correct vertex. To change the m-, n-, and a-values, click and drag the appropriate slider. Or, after clicking on the specific slider, you can use the arrow keys on your keyboard to make it go up or down. If you need to change the range of values allowed for any of the variables, right-click on the variable under the "Free Objects" listing and select "Object Properties". Then, change the max and min for the interval.