# How do you graph #y=-9x#?

See explanation.

Given:

As the number in front of

The graph crosses (intercepts) the x-axis at y=0

and crosses (intercepts) the y-axis as x=0.

Set y=0 giving:

So x-intercept

Set x=0 giving:

So y-intercept

This demonstrates that the strait line passes through the origin.

The origin is where the two axis cross. So this gives us the first point:

Let the first point be

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

All we need know is a second point. This may be determined by substituting any value you so chose into

I chose

So we have:

Let the second point be

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Put a dot at each of these points and draw a strait line through them. Extend this line to the edge of the graph region.

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To graph the equation y = -9x, you can start by plotting points. Choose several values for x, such as -2, -1, 0, 1, and 2. Substitute each value of x into the equation to find the corresponding values of y. Then, plot these points on the coordinate plane and draw a straight line passing through them. This line represents the graph of y = -9x.

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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.

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.

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.

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