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. We learned how to identify a positive or negative slope from the slant of the line. Then we identified graphs of zero and undefined slopes. Next, we reviewed the formula to find the slope when you have 2 points. We practiced finding slopes with the slope formula. Next, we practiced finding the slope from a graph. We practiced word problems where the point-slope formula helped us find the answer.