Sketch an accurate picture of the line having equation f(x)=2-1/2x. Let c be an unknown constant. [UW] a. Find the point of intersection between the line you have graphed and the line g(x)=1+cx; your answer will be a point in the xy plane whose coordinates involve the unknown c.
b. Find c so that the intersection point in (a) has x-coordinate 10.
c. Find c so that the intersection point in (a) lies on the x-axis.