How do you graph # f(x)=-5x-1# by plotting points?

Answer 1

Evaluate the function for some arbitrary values of #x# (at least two, but three or more would be better to ensure no errors).
Plot the resulting coordinate pairs and draw a line through them.

Sample points

#{:(underline(color(black)(x)),color(white)("XXX"),underline(color(black)(f(x)))), (-2,,9),(0,,-1),(2,,-11) :}#

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Answer 2

Kennedy Adams

To graph the function f(x) = -5x - 1 by plotting points:

Choose several values of x.
Substitute each x-value into the equation to find the corresponding y-values.
Plot the points (x, y) on the coordinate plane.
Connect the points with a straight line.

For example:

When x = 0, y = -1. Plot the point (0, -1).
When x = 1, y = -6. Plot the point (1, -6).
When x = -1, y = 4. Plot the point (-1, 4).
Continue this process for more points if needed.
Connect the plotted points with a straight line to graph the function.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.