Question
Do the ordered pairs plotted in the graph below represents a function? Explain.
Hint:
An equation of the form y = f(x) is called a function if there is a unique value of y for every value of x. In other words, every value of x must have one value of y. We can check if the graph is a function by the vertical line test. A graph represents a function if any vertical line in the xy plane cuts the graph at maximum one point.
The correct answer is: (4, 3) and (4, -3)
Step by step solution:
We can check if a graph is a function by the vertical line test. A graph represents a function if any vertical line in the xy plane cuts the graph at maximum one point. We use this method to check if the given graph represents a function.
We draw a vertical line at the point x=4.
We can see that it intersects the ordered pair (4, 3) and (4, -3).
As the vertical line x=4 cuts the ordered pairs at more than one point, that is, (4, 3) and (4, -3), so the above graph does not represent a function.
In a function, every value of x must have one value of y. When we draw a vertical, it cuts x axis at one point, we take that point to be x. If the vertical line cuts the graph at two points, then it gives two values of y for one value of x. This does not represent a function.
Related Questions to study
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In a function, every value of x must have one value of y. When we draw a vertical, it cuts x axis at one point, we take that point to be x. If the vertical line cuts the graph at two points, then it gives two values of y for one value of x. This does not represent a function.
The relationship between the number of hexagons, , and the perimeter of the figure they form, , shown in the graph. Is the perimeter of the figure a function of the number of hexagons? Explain.
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In a function, every value of x must have one value of y. When we draw a vertical, it cuts x axis at one point, we take that point to be x. If the vertical line cuts the graph at two points, then it gives two values of y for one value of x. This does not represent a function.
Meri Approximates the area of circles using the equation and records areas of circles with different radius lengths in a table.
a) Graph the ordered pairs from the table
b) Is the relation a function ? Explain.
In a function, every value of x must have one value of y. When we draw a vertical, it cuts x axis at one point, we take that point to be x. If the vertical line cuts the graph at two points, then it gives two values of y for one value of x. This does not represent a function.
, write an equation for a line that does not intersect the parabola.
