Where is the location of the vertex of the parabola on a coordinate grid y=x^2+2x+1

(-1,0)

Step-by-step explanation:

Convert the equation to vertex form which becomes y=(x+1)^2+0

Then we can see the vertex in the form (h,k) in y=a(x-h)^2+k

x-150=475   x=625

step-by-step explanation:

if the bike after the sale ($150) is $475 then just simply add 150 to 475.