Which function's graph has a vertex at (1, 3) and contains the point (2, 5)? A 2(x+1)2 +3
c (x-1)2+3
D 2(x+1)2+3
B 2(x-1)² +3

The answer will be A

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.