Please help asap - will give mad points. desperate as heck - please

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3

Find y to the nearest hundreds place