Solve the equation by graphing: x^2 – 18x + 81 = 0.
A. {-2, 9}
B. {9/2, 3}
C. {9}
D. No solution

Question

Solve the equation by graphing: x^2 – 18x + 81 = 0.
	A.	{-2, 9}
	B.	{9/2, 3}
	C.	{9}
	D.	No solution

amistre64 · Answer

since you have options, why not just plug and play?

amistre64 · Answer

1 -18  81
0   -2
1  -20... -2 not a zero

anonymous · Answer

If you have to graph, I would convert the equation into vertex form.

amistre64 · Answer

1 -18 81
0   9  -81
1  -9 .... 9 IS a zero

amistre64 · Answer

and; 18/2 = 9, ^2 = 81 so its a perfect square already

amistre64 · Answer

id go 9 :)

anonymous · Answer

If you are asked to graph - then you need to know how to graph.  Do you understand how to graph the equation?

anonymous · Answer

ya the answer is 9 guys

anonymous · Answer

Make a T-chart |dw:1327882261999:dw| keep on going till you get a y value of 9. You will notice the trend of lowering y values.