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anonymous
 one year ago
+1 medal and +1 fan if you help!!!
Which of the following expressions represents a function?
A: y=x^2
B: {(9,2), (4,2), (5,3), (9,4)}
C: x=3
D: x^2=25y^2
anonymous
 one year ago
+1 medal and +1 fan if you help!!! Which of the following expressions represents a function? A: y=x^2 B: {(9,2), (4,2), (5,3), (9,4)} C: x=3 D: x^2=25y^2

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0which one passes the vertical line test?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0a parabola points on a plane a vertical line or a circle??

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2A function has ordered pairs where x  elements have only ONE y  element

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2The second option has x = 9, where it gives two different y values so it's not a function

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2Use a vertical line test @The_Yee_Dinosaur if the line goes through every point only once then it is a function otherwise it's not

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2So a circle would not be a function, if you do the vertical line test the following would happen dw:1435960737269:dw see how the lines are going through two points, we can conclude it's not a function.

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2Anyways, x = 3 is a vertical line so that is not a function, as it's go through more than one point.

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2That leaves us with only one option being a function.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so @Astrophysics your saying that the answer is A: y=x^2? Because that was my first guess.
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