(15 points) ! removable discontinuity of 1. d(x)=(x^2-12x+20)/(3x) 2. z(x)=(x^2-7x-8)/(x^3+64) 3. f(x)=(2x^3-3x+1)/(x^3-5x+7) 4. y=(x^2+4x-5)/(x^2+8x+15)

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

Icould really use some with this question.

Find the value of x for which line a is parallel to line b