There are 9 ways total.
Legend: s=Small,M=medium, L=Large,Lt= lettuce,T=tomato,M=Mayonnaise.
1:Hamburger-S-Lt
2:Hamburger-S-T
3:Hamburger-S-M
4:Hamburger-M-Lt
5:Hamburger-M-T
6:Hamburger-M-M
7:Hamburger-L-Lt
8:Hamburger-L-T
9:Hamburger-L-M.
which equals 9 total.
Given:
A surf instructor has an initial fee of $12 and charges $8 per hour for lessons.
To find:
The y-intercept and its location on the graph.
Solution:
Initial fee = $12
Variable fee = $8 per hour.
Let the total fee be y for x hours. Then,
![y=12+8x](https://tex.z-dn.net/?f=y%3D12%2B8x)
Put x=0, to find the y-intercept.
![y=12+8(0)](https://tex.z-dn.net/?f=y%3D12%2B8%280%29)
![y=12+0](https://tex.z-dn.net/?f=y%3D12%2B0)
![y=12](https://tex.z-dn.net/?f=y%3D12)
Therefore, the y-intercept is 12.
Table of values for
,
x y
0 12
-1 4
Plot (0,12) and (-1,4) on a coordinate plane and connect them by a straight line.
Clearly, the y-intercept is located at (0,12).
The next score is 90 because 85+91+92+92=360/4= 90 average.