Question

Please help me answer this question.

Answer 1

1. Change x = 4t into x = 3t


`4t\cdot(3)/(4)=3t` so


`y=((3)/(4)t)^2-1=(9)/(16)t^2-1`

Answer A and D are wrong.

2. Change x = 4t into x = 2t


`4t\cdot(1)/(2)=2t` and


`y=((1)/(2)t)^2-1=(t^2)/(4)-1`

Answer b is correct.

3. Change x = 4t into x = 8t


`4t\cdot2=8t` and


`y=(2t)^2-1=4t^2-1`

Answer C. is correct, E. is wrong.