2-1 Slope – Bella practiced finding the slope from a pair of points. She labeled the first set of points as the coordinates (x1, y1) and the second set of points as (x2, y2). Then she practiced using the formula for the slope:
m = (y2 – y1) / (x2 – x2). Next she practiced finding the slope from the graph of a line. First she looked at the eight linear graphs and determined whether the graph of each line was positive or negative. Then she located two points on the line and labeled them as (x1, y1) and (x2, y2). Then she used the slope formula as she did before.
Assignment: Complete the assigned problems for homework.
2-1 Slope-Intercept Form – We reviewed the steps to graph a linear equation from the slope-intercept form. Then we reviewed the steps to find the equation of the line in slope-intercept form from a graph.
2-1 Slope-Intercept Form – We learned how to identify a positive or negative slope from the slant of the line. Then we reviewed the formula to find the slope when you have 2 points on the line. We documented steps to graph and write a linear equation. Next we practiced finding an equation of a line that passes through 2 points. We practiced word problems where the point-slope formula helped us find the answer.
Assignment: For homework complete assigned problems.
2-1 Slope-Intercept Form – We learned how to write linear equations in two variables using slope-intercept form to represent the relationship between two quantities. Then we interpreted the slope and the intercept of a linear model. We practiced solving linear equations in the slope-intercept form, y = mx + b, where m is the slope, and the line intersects the y-axis at (0, b), so the y-intercept is b.
Assignment: For homework complete assigned problems.
