Is the relation shown below a function? Use the graph below to justify your answer. (0,3) (1,4) (2, 3) (3,0) (5,4)
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Recall that a slope-intercept form of a linear equation is
Rearrange the given so that it follows that slope intercept form
The y-intercept is the value for which the linear function crosses the y-axis, this is when the value of x is equal to zero. The ordered pair therefore of the y-intercept is (0,-1).