which equation represents the vertex form of the equation y=x^2+2x-6 a. y=(x+2)^2-7 b. y=(x+2)^2-6 c. y=(x+1)^2-6 d. y=(x+1)^2-7

y=1*(x+1)^2+(-7)

Step-by-step explanation:

y)=1*x^2+2*x+(-6)  

y=x^2+2*x+(1)^2+(-1)*(1)^2+(-6)( Complete the square )

y=(x+1)^2+(-1)*(1)^2+-6( Use the binomial formula )

y=(x+1)^2+(-7)( simplify )

y=1*(x+1)^2+(-7)

arithmetic sequence: a sequnce in which the diffrence between any two consecutive terms is the same

step-by-step explanation:

correct answers below: