0
Wiki User
that isn't a question lol, but you can work out alot about a straight line from that. as Y=mx+c where m = gradient (steepness) and c = intercept point (place where the line crosses the Y axis) m = 3 and c = 1
1
2
(1, 9)
(3, 1)
y=x+1 there for answer is 2
x = 1 and y = -2
y=10
They are expressions.
Y = 2x + 1
It is: 1
The solution is: x = 1 and y = -1