Unit 3 Review: Linear Functions

1. Unit 3 Review:Linear Functions Honors Analysis

2. Test topics • Calculate Slope • Graph linear equations using a table • Graph linear equations using x & y intercepts • Graph linear equations using slope-int form • Horizontal lines: y = k • Vertical lines: x = k • Perpendicular lines: Negative Recip. Slopes • Graph functions to find intersection point • Write equations of lines using pt-slope form:

3. Test topics • Graph 2-variable data using a scatter plot • Approximate equation of line of best fit • Use graphing calculator (STAT/lists) to create linear regression line • Use linear equations to make predictions about data • Evaluate positive/negative correlation of data • Calculate midpoint:

4. Test topics • Solve linear equations • Write linear equations based on application problems • Write linear equations involving supplements and complements • Write median equation (passes through triangle vertex and mdpt of opposite side) • Write equation of perpendicular bisector of side (passes through midpoint; perpendicular to slope of side) • Write equation of altitude of triangle (passes through vertex; slope perpendicular to base)

5. Test topics • Solve systems using substitution • Solve systems using elimination • Find intersection point of medians (centroid), altitudes (orthocenter), perpendicular bisectors (circumcenter) • Solve systems of three variables • Write equation of parabola using a system of three variables.