4 years ago

Is y = 3x² + 2 a function or not?

2 answers:

8 0

A function would have one Y value for every X value.
If you replace X with any number and solve the equation there would be a different Y value every time, so this equation is a function.

Mama L [17]4 years ago

8 0

Yes, it's a quadratic function.

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Problem kevin is 3 years older tan daniel. two years ago, kevin was 4 times as old as daniel. how old is daniel now?

Rashid [163]

Let, the age of Daniel = x
Then, Age of Kevin = x + 3

Two years ago, (x + 1) = 4(x - 2)
x + 1 = 4x - 8
4x - x = 1 + 8
3x = 9
x = 9/3
x = 3

In short, Your Answer would be 3 Years

Hope this helps!

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