For this case we must simplify the following expression
We know that, by definition:
So, rewriting the expression we have:
We add similar terms taking into account that:
Answer:
see attached for a graph
domain and range: all real numbers
<h3>Step-by-step explanation:</h3>The function is written in slope-intercept form, showing that it has a slope of -3 and a y-intercept of +7. The y-intercept (0, 7) is a point on the line, as is a point 1 unit to the right and down 3 units, (1, 4).
The graph will be the line through these two points.
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As with any odd-degree polynomial function, both domain and range are all real numbers: (-∞, ∞).
