Which equation is a quadratic equation?
5x − 2 = y

y + 15x2 = (3x − 2)(5x + 7)

y = 3x(5 − x) + 7

y + 2 = (3x2 + 10)(x − 1)

Question

Which equation is a quadratic equation?
 5x − 2 = y 

 y + 15x2 = (3x − 2)(5x + 7) 

 y = 3x(5 − x) + 7 

 y + 2 = (3x2 + 10)(x − 1)

anonymous · Answer

The one that when you multiply it out you have the highest power of the variable is 2 so... multiply them out and see which one is 2...

anonymous · Answer

So it's the second one
the first one is linear, the second is also linear, the third is quadratic and the last is cubic

anonymous · Answer

okayy thankyou so much youver been alot of help

anonymous · Answer

Choose the equation below that corresponds to the graph shown.