Asked by Mathsnewbie
determine if this is a function?
y= x
show working method please
y= x
show working method please
Answers
Answered by
Henry
Graph the Eq and draw a vertical line
through it. The line will intersect the
graph at only one point. Therefore, the Eq is a function; because it passed the vertical line test.
If you graph an X-parabola and perform
the vertical line test, the line will
intersect the graph at 2 points. There-
fore, the X-parabola is not a function;
because it does not pass the vertical
line test.
through it. The line will intersect the
graph at only one point. Therefore, the Eq is a function; because it passed the vertical line test.
If you graph an X-parabola and perform
the vertical line test, the line will
intersect the graph at 2 points. There-
fore, the X-parabola is not a function;
because it does not pass the vertical
line test.
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