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How does the graph change when "a" changes?
How does the graph change when "b" changes?
How does the graph change when "c" changes?
Additionally and most importantly how can i proves this?? thanks to anyone who can solve this.

2006-12-31 10:06:47 · 3 answers · asked by Cheez it 2 in Education & Reference Homework Help

3 answers

Assuming, a,b & c are not all zero, consider the cases for all combinations:

Case1: a is nonzero, then consider each of the following,

(i) if b=c=0; then ax^2 is a parabola w/vertex at (0,0). If a> 0 the parabola upens up; otherwise it opens down.
(ii) if b=0, then ax^2 + c. The vertex of this parabola is (0,c), showing a vertical shift.
(iii) if c=0, then ax^2 + bx .....
:
:

2006-12-31 10:54:34 · answer #1 · answered by S. B. 6 · 0 0

There is another way to look at this. At x = 0, y = c, so the curve crosses the y axis at y = c. The minimum value of the curve occurs when dy/dx = 0, or 2ax+b=0, or where x =-b/2a. For very large values of x, the equation approximates y = ax^2 which is a concave-upward parabola, which narrows as a increases.

2006-12-31 10:59:50 · answer #2 · answered by gp4rts 7 · 0 0

hey....you're letting us solve your homework, ei?

you need a graphing paper;
make a graph with b and c as constants and a as unknown - use succeeding numbers for a such as 1, 2, 3, or 10, 20, 30
do the same way using b as unknown, a and c as constants;
repeat using c as unknown, a and b as constants.

not only will you see the graph, but also will prove that you did it.

good luck to being an engineer.....lol

2006-12-31 10:13:33 · answer #3 · answered by mitzbitz 2 · 2 0

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