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Chapter 3
Linear Functions
Question | Answer |
---|---|
What is the slope-intercept form of an queation for a line? | The slope-intercept form of an equation for a line is y=mx+b. |
What is a linear function? | A linear function is a function with an equation of the form y=mx+b. |
What is true of two lines that have the same slope? | If two lines that have the same slope, then they are parallel. |
What is true of two non-vertical lines that are parallel? | If two non-vertical lines are parallel, then they have the same slope. |
What is the x-intercept? | The x-intercept is the value of x at the point where a graph crosses the x-axis. This point has second coordinate 0. |
What is the standard form of an equation for a line? | When A and B are not both zero, the queation Ax + By=C is called the standard form of an equation for a line. |
What is a point-slope equation for a line? | The equation y-y sub 1= m(x-x sub 1). |