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eduard
4 years ago
9

Which figure correctly demonstrates using a straight line to determine that the graphed equation is not a function of x? HELP PL

ZZZZZZZZZZZZZZZZZZZZZZZZZZ the question is at the top and the choices are the attachments THX SO MUCH TO WHO EVER FIGURES THIS OUT.

Mathematics
2 answers:
Nadya [2.5K]4 years ago
8 0

Answer:

Lower left.

Step-by-step explanation:

To determine if a graph is a function the "vertical line test is used.  If any point on a graph has one x value go to two y values it is not a function.  

Witht he four pictures, the two on the right use a horizontal line, so it doesn't tell at all, on the leftthe upper one is vertical but it doesn't show that one x value has two corresponding y values.  So it must be the lower left one.

The lower left picture has a line at x=1, and it passes through the line of the graph at two different y values, 4 and -4.  So this has two y values with one x value.

pantera1 [17]4 years ago
4 0

Answer:

I believe the graph with the line going through 1,0 (x,y) is correct because it doesnt pass the vertical line test

Step-by-step explanation:

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