What are the values of a, b, and c in the quadratic equation 0 = 5x - 4x22?
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a = 5, b = 4, c = 2
a = 5, b = 4,C=-2
a=-4, b = 5, C = -2
a = 4, b = -5, C = -2

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

22. catie is starting a babysitting business. she spent $26 to make signs to advertise. she charges an initial fee of $5 and then $3 for each hour of service. write and solve an inequality to find the number of hours she will have to babysit to make a profit. interpret the solution.!