Question

Help with Algebra yo?
Which of the following functions represents the table above?
A.y = 3x3
B.y = 3x
C.y =√ (x)
D.y = 3x2

Answer 1

This is what the graph looks like:
X 0 1 2 3 4
Y 0 3 24 81 192

Answer 2

@ganeshie8

Answer 3

Have you tried plugging in the value for x in the table for each of the answers? For example, for x=1 in the table. Plugging into each of answers we are looking for y=3

Answer A: y= 3(x)^3 = 3(1)=3 This is a possible correct answer
Answer B: y=3x = 3(1)= 3 This is a possible correct answer.
Answer C: y=sqrt(x) = sqrt(1)=1 This the wrong. So this answer is no good.
Answer D: y=3(x)^2 = 3(1)^2 = 3(1)=3 This is a possible correct answer.

So answers A, B and D are possible correct answers. So try another value for x. For example x=2 in the table. We are looking for y=24

Answer A: y=3(x)^3 = I'll let you figure this one.
Answer B; y= 3(x)= 3(2) =6 This is wrong. So this answer is no good.
Answer C: We already said this answer was no good.
Answer D: y= 3(x)^2 = 3(2)^2= 3(4)=12 This is wrong so this answer is no good.