Select the correct answer. The graph of a quadratic function has a vertex at (5,3) and goes through the point (-1,-9). What is the equation of the function?
f(x)=-3x - 5)2 + 3
f(x)=-3(x + 5)2 + 3
f(x)=-|(+ 5)2 + 3

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

Which expression is rational? 6. , square root two, square root 14, square root 49

What is the ratio of the length of an object in yards to the length of the same object in miles?