(a) for what values of r does the function y = erx satisfy the differential equation 3y'' + 20y' − 7y = 0? (enter your answers as a comma-separated list.) r =
(b) if r1 and r2 are the values of r that you found in part (a), show that every member of the family of functions y = aer1x + ber2x is also a solution. (let r1 be the larger value and r2 be the smaller value.)

The image of abc is a'b'c. what transformations would result in this image? abc is reflected over the line x = 1, then is rotated -90° around the origin. abc is reflected over the line y = x - 1, then t: (x, y) → (x - 1, y - 1). abc is rotated 90° around the origin, then is reflected over the y-axis. abc is rotated -90° around the origin, then is reflected over the line y = -1.