<span>Part A:To find the point where the two lines intersect, you must find the common point (x). To find this, you must set the two equations equal to each other.
<span>Part A)
you have the equations of two lines:
y = 4-x
and
y = 2x + 3
If a point is on the first line AND that same point is on the other line, then the point must be at the intersection (where the lines cross).
the y value of this point will be BOTH 4-x and 2x+3. In other words
4-x= 2x+3 </span> <span>part C)
graph the two lines
y = 4-x and y = 2x + 3
and see where they intersect. That is, pick out the (x,y) pair that is on both lines.</span>
