Question

25. You have $25. A box of candy costs $1.75.
a. Write an inequality to express the relationship between the number of boxes of candy you could
buy and the total amount of money you have.
b. How many boxes of candy can you buy?

Answer 1

i know B. its 14 boxes of candy

Answer 2

26. Consider the following: (0, -1), (3, 7), (3, 9), (4, 8), and (5, 2).
State the domain and range.
Is this a relation or function? Why or why not? (4 points)

Answer 3

Domain = set of all the first coordinates. So list them, in a set.
Range - set of all the 2nd coordinates. Just list them.

Is it a function - the way I teach this..... a relation is a function IF it is true that, "If you know x, you know y". E.g., there are no pairs in the relation where the same x coordinate maps to 2 different y's. So check all the pairs. Is there a pair that has the same value of x, but with different values of y? If so, not a function. If not so, then it is a function.

Answer 4

thank you

Answer 5

just to make sure im doing this right the first sets r 0,3,4,5

Answer 6

n the seconds r -1,7,9,8,2

Answer 7

right

And do you think it's a function?

Answer 8

im about to make a graph to find out thanks again!

Answer 9

no its not a function

Answer 10

and could you help with the first question?