Answer:
A
Step-by-step explanation:
In a function, each x value must have a singular y value. This means that one x-value (the values on the left) may not have a line pointing to 2 different y-values (the values on the right). In the first relation, the x-value of 6 points to both 4 and 6. This means that the value repeats, and in a function x-values cannot repeat.
However, y-values can repeat. So, situations like that seen in D, where both the x-values of 2 and 4 equal the y-value of 6 are fine.
Answer:
45 is the cost per hour
Step-by-step explanation:
Answer:
y = x - 7
Step-by-step explanation:
You take each equation and sub in for x and y.
The first equation would look like this:
16 = 2(23) - 30 Then you answer looks like this:
16 = 16 but if you did that for the second set in the column it looks like this:
18 = 2(25) - 30
18 = 50 - 30
18 = 20 which does not equal canceling the first answer.
And the second answer doesn't make sense because if x > y you shouldn't add to x. The same goes for the third answer.
So that leaves only one answer y = x - 7
Hope this helps
Sorry if this answer is long
GeneralGranato777
Answer:
C
1/3y - 7/5×+ 2/3-2/3 y- 4/9
