Please do the attachment for points, and give a good answer

After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply. a. 9% + 3x2 = 14 + x-1 b. -x+ + 4x + 7 = -32-9 c. 5x + 4 = 3x4 - 2 d. 2x2 + x2 + x = 30

What is the definition of exponential decay?

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)