Which of the tables represents a function?

table a
input output
8 −9
8 −8
10 −8
table b
input output
4 11
7 12
7 13
table c
input output
−4 0
−3 3
−2 5
table d
input output
10 0
10 4
3 7

table a
table b
table c
table d

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

Through non-collinear points there is exactly one plane.

Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64