Y=mx+b
m= slope so slope= .5
b= y intercept so y intercept=0
0.000044, because 10 to the negative fith is 0.00001, and 0.0001 times 4.4 is 0.000044
500 is the answer because 500 is much closer
After manipulating above equation we get, 2x^2 - 7x - 8= 0. Discriminant= b^2 - 4ac = (-7)^2 - 4(2)(-8) = 113>0. So there are 2 real roots :)
