Which set of ordered pairs represents a function? \{(1, 1), (5, -9), (1, 7), (8, -4)\}{(1,1),(5,−9),(1,7),(8,−4)}
\{(-9, -1), (-9, 5), (9, 6), (-7, 7)\}{(−9,−1),(−9,5),(9,6),(−7,7)} \{(-7, 7), (1, -9), (6, 7), (-1, 3)\}{(−7,7),(1,−9),(6,7),(−1,3)}
\{(-7, -6), (-4, 2), (-7, -9), (1, -6)\}{(−7,−6),(−4,2),(−7,−9),(1,−6) }

typically if you want , you would actually put questions here for us to you. but hey, that's just me. maybe someone will magically answer the questions for you without knowing what they are.

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of