2007-09-04 08:51:20 · 3 answers · asked by baby166_99 2 in Science & Mathematics ➔ Mathematics
ax^2 + bx + c
A can not be 0 because 0 * x^2 = 0 and you left with bx + c, which is not a quadratic fuction.
2007-09-04 08:57:29 · answer #1 · answered by 7 · 1⤊ 0⤋
Hi,
Well, let's take a look at that. We knos that the graph of a quadratic is a parabola. So, let's start with this quadratic equation:
f(x) = x² +2x + 3
1) Now, if we get rid of the 3, it's still a parabola, the parabola is just shifted down three units.
2) If we get rid of both the 3 and the 2x, it's still a parabola. It's just shifted again.
3) But if we get rid of the x² term, and leave the other two terms, we have a linear equation.
So, the answer is that the coefficient of x² cannot be zero and still have a quadratic equation.
Hope this helps.
FE
2007-09-04 16:07:12 · answer #2 · answered by formeng 6 · 0⤊ 0⤋
F(x)=ax^2+bx+c
the coefficient cannot =zero is a
2007-09-04 15:59:35 · answer #3 · answered by Anonymous · 0⤊ 0⤋