Function Not a function
y
5
4
3
2+
-5 -4 -3 -2 -1
+ X
1 2 3 4 5
-2 +
-3
-4
-5

Function

Step-by-step explanation:

We can tell if the graph is function or not by doing line test.

First, we draw a vertical line.

Second, if the graph intercepts the line more than two points then it won't be a function.

If the graph only intercepts the line only once (one point) then It is a function.

From the graph, It is a function.

i think 1: 2

step-by-step explanation:

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5