Question

Which of the following are the coordinates of the roots of -3x^2 + 9x = 0?

a.) (0, 0) and (8, 0)

b.) (0, 0) and (3, 0)

c.) (0, 0) and (6, 0)

d.) (0, 0) and (-3, 0)

Answer 1

Graph the equation on your graphing calculator if you have one.

Answer 2

If not, use this site... http://www.wolframalpha.com/input/?i=-3x%5E2+%2B+9x+%3D+0

Answer 3

-3x(x-3)=0
you can find.

Answer 4

The answer's B-) you go about finding it by finding the zeros of the graph in the website. :)

Answer 5

ok thank you both :)

Answer 6

No problem.

Answer 7

yw