11.4 Exit Slip

There are two functions shown in this three column table. The first function is y1=4x^3+5, and the second function is, y2=7x^3+100.

The first column contains some values for the independent variable x. These values range from the numbers -25 to 25. The scale is set to 5.

These x values were substituted into the function, and the results are displayed in the second and third columns. Since these are cubic functions, the y-values first decrease as x-values increase from negative numbers to zero. For the first function y1=4x^3+5 ,(0,5) is the vertex, and for the second function y2=7x^3+100 (0,100) is the vertex. Which is also the minimum point on the graph. Then, the y-values increase as x increases from 0 to positive values.