What are the intersection points of the parabola given by the equation y = x -9 and the line given by the equation y = x - 3?
A. (-3,-6) and (2, -1)
B. (-3,0) and (4,7)
C. (3,0) and (-2,-5)
D. (3,0) and (-4, -7)

What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

If you answer right ill give brainliest, : )