Practice problem
Let f(x)=3x2+5x+8f(x)=3x^2+5x+8f(x)=3x2+5x+8 and g(x)=−3x2+x−1g(x)=-3x^2+x-1g(x)=−3x2+x−1. Is the function h(x)=f(x)+g(x)h(x)=f(x)+g(x)h(x)=f(x)+g(x) quadratic?
Yes, it is quadratic.
No, it is not quadratic because it is the sum of two functions.
No, it is not quadratic because the quadratic term disappears in the summation.
It could be quadratic.
Type a concept, like “slope” or “photosynthesis”.
