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anonymous
 one year ago
Which of the following expressions represents a function? (5 points)
x = 1
{(3, 2), (3, −2), (4, 5), (4, −5)}
y = 4x − 1
4x2 + y2 = 16
anonymous
 one year ago
Which of the following expressions represents a function? (5 points) x = 1 {(3, 2), (3, −2), (4, 5), (4, −5)} y = 4x − 1 4x2 + y2 = 16

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iwillrektyou
 one year ago
Best ResponseYou've already chosen the best response.0A function must start with either f(x), or y.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So itd either be a or c?

iwillrektyou
 one year ago
Best ResponseYou've already chosen the best response.0It would be c. The reason is: x = 1, is just a point. {(3,2),(3, 2), (4, 5), (4, 5)} is a series of points. y = 4x  1 starts with y, and has a slope and yintercept. 4x^2 + y^2 = 16 is just an equation.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0OMG thank you so much.

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1x = 1 is a line a series of points can also be a function, but that one has more than one y value for a given x value so it is not. The third is a line and is a function. the fourth is an Ellipse, and is nto a function for the same reasons, more than one y value for a given x

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1If the graph of any of them ever cross a vertical line more than once, Not a function.. quick visual test...
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