Question

Jason is at the mall buying sno-cones for his friends. The function m = 5 − 1.25s represents the amount of money m he has left after s sno-cones. Find the zero value of this function by plotting points on the graph and finding the x-intercept.

Answer 1

Answer:

The zero value of the function occurs at s = 4

Step-by-step explanation:

The given function for the amount of money, m, Jason has left after buying s number of sno-cones for his friend is m = 5 - 1.25·s

Therefore, we have generated from Microsoft Excel the following data table used to plot the points on the graph

Number of Sno-cones          ${}$        Amount of money left

0                                    ${}$                        5

1                                    ${}$                         3.75

2                                    ${}$                        2.5

3                                    ${}$                        1.25

4                                    ${}$                        0

Therefore, as seen from the above table, and from the attached graph, the zero value of the function occurs at the value where the amount of money left (y-coordinate value) is 0 which is at the value of s = 4.