which if the expressions below are true ? select all that apply . ( expressions will be in image . )

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

Whats the name of the vertical axis

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20