More complicated forms of graphing aren't hard for me, but this one simple step trips me up.
I know that the simple equation for a linear graph with a slope of one is:
y=x
If my x intercept is -1 and my y intercept is 1 how would I express this in an equation? I've tried looking in places like Math professor but I don't know what year of learning this trinket of knowledge comes from.
Is there anyone who could help me find a page explaining this, or some examples of changing a graph into an expression?
Any help would be greatly appreciated.
~Edit~
To clarify:
I understand the concept of it, I only need help expressing the actual thing. I can't figure out where the numbers go.
y=x is the equation.
x=-1
y=1
but the equation wouldn't be -1=1
would it be y=-x?
I know that the simple equation for a linear graph with a slope of one is:
y=x
If my x intercept is -1 and my y intercept is 1 how would I express this in an equation? I've tried looking in places like Math professor but I don't know what year of learning this trinket of knowledge comes from.
Is there anyone who could help me find a page explaining this, or some examples of changing a graph into an expression?
Any help would be greatly appreciated.
~Edit~
To clarify:
I understand the concept of it, I only need help expressing the actual thing. I can't figure out where the numbers go.
y=x is the equation.
x=-1
y=1
but the equation wouldn't be -1=1
would it be y=-x?