Determine whether y = -2x² - 3 is a function.
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For this case we have the following equation:
We manipulate algebraically to bring the equation to the slope-intersection form y = mx + b
Where:
m: It's the slope
b: It is the cut-off point with the y axis
By definition, if two lines are parallel then their slopes are equal.
Thus, the line is of the form:
We find the cut-off point by replacing the given point:
Thus, the line is of the form:
Answer: