The mapping diagrams below show 4 different relationships between input and output values. How many of the mapping diagrams represent functions?
А
Output
B
Output
Input
Input
1-
6
2
0
2-
7
4
3-
8
6
4-
9
8
с
D
Input
Output
Input
Output
8
0
3
9
3
5
5
7
9

Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $

Pls as soon as ! will award brainliest and 20 ! also the answer is not 22.5 degrees! find the value of x in each case:

Create a varationof radical symbol y=a a (x-h)+k function graph the parent function with all 4 varations question: how did each variable change affect the graph? use (desmos) graphing to graph the it