Find the slope and the y intercept of the the equation y + 1 = 4/3x

The graph shows the rate at which paint is used to paint a wall.enter values to complete each statement below based on the graph.when 1 gallon of paint has been used, ( # ) square feet of the wall will be painted.the unit rate is ( # )square feet per gallon.

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?