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Review of x-intercepts and y-intercepts of lines, including definitions and examples.
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This topic covers: - Intercepts of linear equations/functions - Slope of linear equations/functions - Slope-intercept, point-slope, & standard forms - Graphing linear equations/functions - Writing linear equations/functions - Interpreting linear equations/functions - Linear equations/functions word problems
Slope-intercept from two points. Constructing linear equations from context. Writing linear equations word problems. Slope-intercept form review.
Let's explore different ways to find and visualize slopes and intercepts, and how these concepts can help us solve real-world problems. **Unit guides are here!** Power up your classroom with engaging strategies, tools, and activities from Khan Academy’s learning experts.
Learn how to graph lines whose equations are given in the slope-intercept form y=mx+b.
Point-slope is the general form y-y₁=m(x-x₁) for linear equations. It emphasizes the slope of the line and a point on the line (that is not the y-intercept). We can rewrite an equation in point-slope form to be in slope-intercept form y=mx+b, to highlight the same line's slope and y-intercept.
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Review of the discriminant in quadratic equations and its role in determining the number and type of solutions.
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