Given the relation R = {(-2, 3), (a, 4), (1, 9), (0, 7)}. Which placement for a makes this relation a function. 1
-2
0
4

D. 4

Step-by-step explanation:

for it to be a function you cant have more than one similar x value... basically if one has already taken a x value then another cant have that same one

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.

oof cheaters cheat because they’re lazy that’s why i cheat xd

: )

step-by-step explanation: