Graph f(x)=2x
Problem
Solution
Identify the type of function. The function
ƒ(x)=2*x is a linear function in the formƒ(x)=m*x+b Determine the slope and y-intercept. The slope
m is2 and the y-interceptb is0 meaning the line passes through the origin(0,0) Calculate additional points to define the line. For
x=1 ƒ(1)=2*(1)=2 giving the point(1,2) Forx=−1 ƒ*(−1)=2*(−1)=−2 giving the point(−1,−2) Plot the points
(0,0) (1,2) and(−1,−2) on a Cartesian plane and draw a straight line through them.
Final Answer
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