Math

Question Solve the quadratic equation 2x2x=22x^2 - x = 2 by graphing. Round each solution to the nearest tenth.

Studdy Solution

STEP 1

Assumptions1. The equation to solve is xx=x^ - x = . The solution is obtained by graphing and rounding each answer to the nearest tenth3. The options provided are 0.5,1.8-0.5,1.8, 1,1.3-1,1.3, 0.8,1.3-0.8,1.3, 1.1,1.51.1,-1.5

STEP 2

First, we need to rewrite the equation in the standard form of a quadratic equation, which is ax2+bx+c=0ax^2 + bx + c =0. To do this, we subtract2 from both sides of the equation.
2x2x2=02x^2 - x -2 =0

STEP 3

Now, we can graph the equation 2x2x2=02x^2 - x -2 =0. This is a parabola that opens upwards since the coefficient of x2x^2 is positive.

STEP 4

The solutions to the equation are the x-coordinates where the graph intersects the x-axis. These are the points where the value of the function is zero.

STEP 5

By graphing the equation, we can visually estimate the solutions and then round each answer to the nearest tenth.

STEP 6

After graphing, we can see that the graph intersects the x-axis at approximately x=0.5x = -0.5 and x=1.8x =1.8.So, the solutions to the equation are x=0.5x = -0.5 and x=1.8x =1.8.

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