Find the equation of the line that contains the given point and the given slope. write the equation in slope-intercept form. 1. (4, 1) slope = 6 2. (6,-3) slope= -5 3. (-8, 2) slope = -1/2 4. (-7,-1) slope = 0

7x+8y=-18, 4x-9y=-3 solve the system of equations

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.