Question

How does the vale of B affect the Parabola (y=ax^2-bx-c)
a Changes the width
b moves the parabola along the x-axis

Answer 1

the value of b is a part of the vertex in the parabola

Answer 2

to see its effect; we can graph it ; or simply determine the values for y and see it change

Answer 3

so does it change the width or go along the x-axis

Answer 4

http://www.wolframalpha.com/input/?i=y%3Dx^2+-6x+-9+and+y%3Dx^2+-3x+-9+and+y%3Dx^2+%2B+0x+-9+and+y%3Dx^2+%2B6x+-9

Answer 5

the width is changed by the first coefficient; b moves it up and down and left and right

Answer 6

Thank you