Answer:
A) a vertical line does not represent a function.
Step-by-step explanation:
For a relation to be a function for each value of there must be only one value of . In other words a function is one in which each value in the domain set corresponds to only one value in the range set.
Let us check for this condition in the give choices:
A) a vertical line
A vertical line is given as which meas it is parallel to y-axis and has infinite number of values for a single value.
So, its Not a function.
B)
For the given equation, on plugging in some value will give a single value.
So, its a
Function.
C) a horizontal line
A horizontal line is given as which meas it is parallel to x-axis and has infinite number of values giving a single value.
So, its a Function
.
D) {(1, 7), (3,7), (5, 7), (7,7)}
For the given set for different valuesthere is only one value.
So, its a Function
.
You are least likely to choose white. Bc there are only 4 of those.
It’s the second one {4, 6, 7, 7, 9, 12, 40}
D+q=38
0.1d+0.25q=5.75
Multiply the second equation by -10 and use elimination method.
-d-2.5q=-57.5
d+q=38
-1.5q=-19.5
q=13
Plug quarter number in
d+13=38
d=25
Final answer: 13 quarters, 25 dimes