Unit 2 Showme Videos are here: http://www.showme.com/course/7781 (The link may work better on phones than this page.)

You can try topics S.2 - S.20 for good practice problems for this unit: https://www.ixl.com/math/algebra-1

You can try topics S.2 - S.20 for good practice problems for this unit: https://www.ixl.com/math/algebra-1

__Unit 2 Vocabulary__

- slope – change in the dependent variable divided by the change in the independent variable (aka average rate of change)
- increasing interval – domain values where the function goes uphill from left to right
- decreasing interval – domain values where the function goes downhill from left to right
- f(x) positive – the function is above the x-axis (y-values are positive)
- f(x) negative – the function is below the x-axis (y-values are negative)
- f(x) constant – the function remains the same (y-values stay the same) Horizontal line or line segment.
- positive slope – the function goes uphill from left to right
- negative slope – the function goes downhill from left to right
- zero slope – the function is a horizontal line or line segment
- slope-intercept form – y = mx + b where m is the slope and b is your y-intercept
- point-slope form – y = m(x – h) + k where (h,k) is a point and m is the slope [or y – y1 = m (x – x1) where (x1, y1) is a point on the line and m is the slope]
- standard form of a linear equation – Ax + By = C where A,B,C are integers and A must be positive
- translation – a vertical or horizontal shift
- horizontal translation – a shift to the left or right
- vertical translation – a shift up or down
- parallel lines – lines that are in the same plane and never intersect. Parallel lines have the same slope.
- perpendicular lines – lines that intersect in right angles. Perpendicular lines have opposite reciprocal slopes.

Quiz 2.1 covers rate of change (slope).

Quiz 2.2 covers the walk the line and analysis of functions lessons.

Unit 2 Test will assess WS p10-22.

Quiz 2.2 covers the walk the line and analysis of functions lessons.

Unit 2 Test will assess WS p10-22.