Answer:
21. B. Graph Z
23. A. neither function nor relation
24. D. relation only
Step-by-step explanation:
21. Graph Z is the only graph which does not pass the vertical line test
23. The graph does not pass the vertical line test, AND it is not merely given x and y points like a relation. It is graphed as a squiggly line with no given x and y points, therefore you could not make a relation from it either.
24. There is an x value of -4 twice, meaning the set does not pass the vertical line test, HOWEVER, it is a given collection of x and y values, making it a relation.
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These numbers are 12 and 14.
Answer:
Annuity= 242.4
Step-by-step explanation:
This is a compound interest problem.
The total amount at the end of 25 years will be
A = p(1+r/n)^(nt)
A = 150(1+(0.04/(25*12)))^ ((25*12)(25))
A= 150(1 + 0.04/300)^ (300*12)
A = 150(1+ 0.0001333)^ 3600
A = 150(1.0001333)^ 3600
A = 1500(1.615828808)
A= 242.374
A= 242.4 to the nearest cent
4(3x - 1) = 24
First, divide both sides by 4. / Your problem should look like: 3x - 1 =

.
Second, simplify

to 6. / Your problem should look like: 3x - 1 = 6.
Third, add 1 to both sides. / Your problem should look like: 3x = 6 + 1.
Fourth, simplify 6 + 1 to 7. / Your problem should look like: 3x = 7.
Fifth, divide both sides by 3. / Your problem should look like: x =

which is your answer.