Do the ordered pairs below represent a relation, a function, both a relation and a function, or neither a relation nor a function? (-4,-2) , (1,-12) , (-4,-22) , (7,-24) a. relation b. function c. both d. none

Hey there!!

This ordered pair represents a Relation but not a function

Remember :

In a function, the domain or the x values shall not  repeat, the y values can repeat any number of times, it doesn't affect us.

In this ordered pair, if we look closely, ( -4 ) in domain or the 'x'values is repeating.

Hence, the answer is ( a )

Hope my answer helps!

1. supplementary angles

2. acd and bcd

step-by-step explanation:

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west