I need help on this question pleasee
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The graph of the relation between x and y is as shown in attached figure
By applying the vertical line test we find that the relation is not a function because there are two points which are (1,-1) , (1,3) have the same value of x with different values of y which contradicts with with the rule of function.
By applying the vertical line test we find that the relation is not a function because there are two points which are (1,-1) , (1,3) have the same value of x with different values of y which contradicts with with the rule of function.
<em>The right answer for:</em>
<em>cos(-170°) = _____</em>
<em>is:</em>
<em>-cos10°</em>
<h2>Explanation:</h2>The cosine function is an even function, which means that for every point on the graph of
then the point
also lies on the graph of the function. In other words, we can write:
But:
So:
By property:
Trigonometric functions: brainly.com/question/2680050
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