Use the quadratic formula to find the x-intercepts of the function. Round to the nearest tenth if necessary.

y = -2x^2 + 5x - 1
A. {2.3, 0.2}
B. {2.2, -5.8}
C. {-9.2, -0.8}
D. no real solution

Question

Use the quadratic formula to find the x-intercepts of the function. Round to the nearest tenth if necessary.

y = -2x^2 + 5x - 1
	A.	{2.3, 0.2}
	B.	{2.2, -5.8}
	C.	{-9.2, -0.8}
	D.	no real solution

anonymous · Answer

Do you know how to use the quad form hunny? http://schooltutoring.com/help/wp-content/uploads/2012/06/quadratic-equation-calculator.gif

mathstudent55 · Answer

The x-intercepts are the points where the curve crosses the x-axis and the y-coordinates are zero.

Let y = 0, then you get:

$-2x^2 + 5x - 1 = 0 $

Use the quadratic formula with a = -2, b = 5, and c = -1 to find x.