4.6 x 3 in standers form expanding form

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 number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Which of the following statement about pascal's triangle are true?