Which relationship is NOT a function? Input
Output
the prices throughout the
year of the items in a store
a
T-shirt
Regular S10
Sale $7
Input
Output
the number of home runs
each baseball player hits
in one season
Input Output
2
4.
4
16
36
6
Player A
12
Player B
17

3. parallelogram

step-by-step explanation:

we turn each of our sides into direction vectors

ab=b-a=(3 - 7, 1 - 0) = (-4, 1)

bc=c-b=(1,6)

cd=d-c=(4,-1)

da=a-d=(-1,-6)

we see how the opposite sides have negated direction vectors; this is characteristic of a parallelogram.   we have congruent sides ab=cd and bc=da with unequal lengths because 1^2+6^2 is different from (-4)^2+1^2.   so it's not a square or a rhombus.  

we check the dot product of direction vectors of adjacent sides.   we have

ab dot bc = -4(1) + 1(6) = 2

that's not zero so the sides are not perpendicular.   we've ruled out rectangle.

the direction vectors indicate two pairs of congruent parallel sides, so we choose parallelogram over trapezoid.

mean, 40.6

step-by-step explanation:

with btw u said 100pts but it clearly says

i answerd and just got 10pts

no hate