The function relating the cost of framing a picture y to the number of inches of frame x is shown in the graph. Write an equation of the line in slope-intercept form that represents this situation

helppp pleas!!

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

If you answer 2+2 you will get over 80 points

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?