Algebra 1, Unit 3: Linear Functions and Graphing. Key terms, formulas, and worked-example cues a high school student meets for this unit, building on prior units. Front: the term, formula name, or short problem cue. Back: the definition, formula, or solution method.
34 cards · basic cards · AI-written, checked twice. Edit anything.
- What is a linear function?
- A function whose graph is a straight line
- What is the slope of a line?
- A measure of its steepness, calculated as rise over run
- What is the formula for slope between two points?
- m = (y2 - y1) / (x2 - x1)
- What is the y-intercept of a line?
- The point where the line crosses the y-axis
- What is slope-intercept form?
- y = mx + b, where m is slope and b is the y-intercept
- What does a slope of zero indicate about a line?
- The line is horizontal
- What does an undefined slope indicate about a line?
- The line is vertical
- What is the slope of a line parallel to y = 2x + 1?
- 2, the same slope
- What is true about the slopes of two perpendicular lines?
- Their slopes are negative reciprocals of each other
- What is point-slope form of a line?
- y - y1 = m(x - x1)
- What is standard form of a linear equation?
- Ax + By = C
- What is the x-intercept of a line?
- The point where the line crosses the x-axis
- How do you find the x-intercept of an equation?
- Set y equal to zero and solve for x
- How do you find the y-intercept of an equation?
- Set x equal to zero and solve for y
- What does a positive slope indicate about a line's direction?
- It rises from left to right
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