8-6 Solve by Graphing – We used our knowledge of rate of change and initial value to write a linear function as an equation and interpret a function from a graph. We reviewed the slope formula, which is the change of y divided by the change of x. Then we solved for the y-intercept in the slope–intercept formula by substituting one of the points for x and y.
Assignment: Complete assigned problems for homework.
We practiced converting linear algebraic equations to the slope-intercept form. Then we plotted the lines. Next, we practiced identifying the y-intercept and slope from equations and graphs.
Assignment: Complete assigned problems for homework.
8-3 Slope and y-intercept – We practiced using the slope formula to find the slope of a line from 2 points. Then we calculated the rise over the run to find the slope of a line on a graph.
8-3 Slope and y-intercept – We compared functions in tables, equations, and graphs by finding the constant rate of change and initial value. To find the slope or constant rate of change from a table we divided the change in y by the change in x.
Assignment: Complete assigned problems for homework.
8-2 Equations with Two Variables – We practiced solving algebraic equations for a given x in terms of y. We learned the slope-intercept formula y = mx + b. Then we rearranged equations to resemble the slope-intercept form of a linear equation.
Assignment: Complete assigned problems for homework.
8-1 Relations and Functions – We learned that a relation is a set of ordered pairs and a function is a relation in which each input, or x value, has exactly one output, or y-value. We learned how to identify whether a relation is a function in different representations: equations, tables, and graphs.
Assignment: Complete assigned problems for homework.