This question tests your ability to express one variable in terms of the other. Level of difficutly easy.
If x = 2k – 2 and y = 4k^2, then what is y in terms of x?
1. x + 2
2. ((x + 2)^2)/2
3. (x + 2)^2
4. x^2 + 4
5. (x + 4)^2
If x = 2k – 2 and y = 4k^2, then what is y in terms of x?
1. x + 2
2. ((x + 2)^2)/2
3. (x + 2)^2
4. x^2 + 4
5. (x + 4)^2
2 comments:
k=((x+2)/2)
y=4((x+2)/2)^2
=(x+2)^2
y=(x+2)^2
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