Library receives 823 new books on monday 312 check out on Tuersday 129 returned and 272 checked out how many are available Wednesday

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

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

Can someone answer this question for me