I think the answer is a btw hoped it helped
Answer:![x-2y-2=0](https://tex.z-dn.net/?f=x-2y-2%3D0)
Step-by-step explanation:
Given :
![f(x) = x^2 - 4 \\ g(x) = - 3x^2 + 2x + 8](https://tex.z-dn.net/?f=f%28x%29%20%3D%20x%5E2%20-%204%20%5C%5C%20g%28x%29%20%3D%20-%203x%5E2%20%2B%202x%20%2B%208)
Point of intersection :
![f(x)=g(x)\\x^2-4=-3x^2+2x+8\\4x^2-2x-12=0\\2x^2-x-6=0\\2x^2-4x+3x-6=0\\2x(x-2)+3(x-2)=0\\(x-2)(2x+3)=0\\x=2\,,\,\frac{-3}{2}](https://tex.z-dn.net/?f=f%28x%29%3Dg%28x%29%5C%5Cx%5E2-4%3D-3x%5E2%2B2x%2B8%5C%5C4x%5E2-2x-12%3D0%5C%5C2x%5E2-x-6%3D0%5C%5C2x%5E2-4x%2B3x-6%3D0%5C%5C2x%28x-2%29%2B3%28x-2%29%3D0%5C%5C%28x-2%29%282x%2B3%29%3D0%5C%5Cx%3D2%5C%2C%2C%5C%2C%5Cfrac%7B-3%7D%7B2%7D)
![x=2\,;f(2)=2^2-4=0\\x=\frac{-3}{2}\,; f\left ( \frac{3}{2} \right )=\left ( \frac{3}{2} \right )^2-4=\frac{-7}{4}=-1.75](https://tex.z-dn.net/?f=x%3D2%5C%2C%3Bf%282%29%3D2%5E2-4%3D0%5C%5Cx%3D%5Cfrac%7B-3%7D%7B2%7D%5C%2C%3B%20f%5Cleft%20%28%20%5Cfrac%7B3%7D%7B2%7D%20%5Cright%20%29%3D%5Cleft%20%28%20%5Cfrac%7B3%7D%7B2%7D%20%5Cright%20%29%5E2-4%3D%5Cfrac%7B-7%7D%7B4%7D%3D-1.75)
So, we have points ![\left ( 2,0 \right )\,,\,\left ( -1.5,-1.75\ \right )](https://tex.z-dn.net/?f=%5Cleft%20%28%202%2C0%20%5Cright%20%29%5C%2C%2C%5C%2C%5Cleft%20%28%20-1.5%2C-1.75%5C%20%5Cright%20%29)
Equation of line passing through two points
is given by ![y-y_1=\frac{y_2-y_1}{x_2-x_1}\left ( x-x_1 \right )](https://tex.z-dn.net/?f=y-y_1%3D%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D%5Cleft%20%28%20x-x_1%20%5Cright%20%29)
Let ![\left ( x_1,y_1 \right )=\left ( 2,0 \right )\,,\,\left ( x_2,y_2 \right )=\left ( -1.5,-1.75\ \right )](https://tex.z-dn.net/?f=%5Cleft%20%28%20x_1%2Cy_1%20%5Cright%20%29%3D%5Cleft%20%28%202%2C0%20%5Cright%20%29%5C%2C%2C%5C%2C%5Cleft%20%28%20x_2%2Cy_2%20%5Cright%20%29%3D%5Cleft%20%28%20-1.5%2C-1.75%5C%20%5Cright%20%29)
So, equation is as follows :
![y-0=\frac{-1.75-0}{-1.5-2}\left ( x-2 \right )\\y=\frac{-1.75}{-3.5}\left ( x-2 \right )\\y=\frac{1}{2}(x-2)\\2y=x-2\\x-2y-2=0](https://tex.z-dn.net/?f=y-0%3D%5Cfrac%7B-1.75-0%7D%7B-1.5-2%7D%5Cleft%20%28%20x-2%20%5Cright%20%29%5C%5Cy%3D%5Cfrac%7B-1.75%7D%7B-3.5%7D%5Cleft%20%28%20x-2%20%5Cright%20%29%5C%5Cy%3D%5Cfrac%7B1%7D%7B2%7D%28x-2%29%5C%5C2y%3Dx-2%5C%5Cx-2y-2%3D0)
1/2 = 0.5...to turn to a percent, multiply by 100.
0.5 x 100 = 50%