Graph f(x)=-2
Problem
Solution
Identify the type of function. The expression
ƒ(x)=−2 is a constant function, which means the outputy is always−2 regardless of the value ofx Determine the geometric representation. In a Cartesian coordinate system, a constant function
y=c represents a horizontal line.Locate the y-intercept. Since
y is always−2 the line passes through the point(0,−2) on the y-axis.Plot additional points to verify the direction. For any
x such asx=−3 x=1 orx=5 the correspondingy value is always−2 Draw a straight horizontal line passing through all points where the y-coordinate is
−2
Final Answer
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