Question

Which of the following expressions represents a function? (x2 + y2 = 9 {(4, 2), (4, −2), (9, 3), (9, −3)} x = 4 2x + y = 5

Answer 1

Hello there,

(x2 + y2 = 9 and 2x + y = 5 are both functions as they can be plotted on graph. We can use equation and suppose the value of y to calculate the value of x. After assuming the values we use the values of x and y to plot the graph and solve the function

I hope you like the answer.

Answer 2

Answer:

HOPE THE ABOVE GIVEN ATTACHMENT WILL HELP YOU.....