Question 464684
1)
(0,0)
2)
m+(-8--1)/(-5--2)
m=-7/-3
m=7/3
-------------------
-1=7/3*-2+b
-1=-4.7+b
3.7=b
---------------
y=7/3x+3.7
3)
(5z-u)(3z+5u)
15z^2+25zu-3zu-5u^2
15z^2+22zu-5u^2
4)
36.80/0.125=$294.40
5)
8X10^10