suppose the equation for line a is given by y=-3/4x-2. if line a and a line b are perpendicular and the point -4, 1 lies on line b then write an equation for line b

Are the corresponding angles congruent? explain why or why not.

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?