Which set of ordered pairs does not represent a function? {(5, -1), (-6, -7), (-5, -7), (9, 6)\}{(5,−1),(−6,−7),(−5,−7),(9,6)}< br /> {(8, -1), (-4, -1), (-6, 5), (4, -2)\}{(8,−1),(−4,−1),(−6,5),(4,−2)}
{(8, 6), (-1, 2), (8, -8), (1, 9)\}{(8,6),(−1,2),(8,−8),(1,9)}
{(-1, 1), (7, -2), (-7, -3), (0, -3)\}{(−1,1),(7,−2),(−7,−3),(0,−3)}

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

a framing bias

step-by-step explanation:

rodrigo is subject to a framing bias i believe.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!