Hint: Parallel Lines: lines that never intersect Perpendicular Lines: lines that form right angles when they intersect Figuring out the Slope from Two Pairs of Points Word Problems with Parallel and Perpendicular Lines Finding the Value of a Missing Coordinate Using Slope Have any questions? Leave them in the comments below!
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4.3 Graphing Linear Functions
Note: How to Find Slope, X Int. and Y Int. from a Graph Drawing a Line with the Given Slope and Intercept Determining Slope from Two Points If you have any questions, leave them down below!
4.2 Rate of Change
Formula for Rate of Change = y2 – y1/x2 – x1 How to Find Rate of Change from a Graph Word Problems with Rate of Change Still have questions? Leave them in the comments below!
4.1 Slope
Types of Slopes: Negative = Zero = Positive: Undefined: General Intro to Slope How to Find Slope from a Graph How to Find Slope from a Pair of Points Have any questions? Leave them in the comments down below!
3.3 Linear Equations
Definitions: Determining if an Ordered Pair is a Solution to the Equation How to Graph a Linear Equation Linear Equation Word Problems If you have any questions, leave them in the comments below!
3.2 Functions
💡 Tip = for every value of the domain (x-value) there’s one, and only one, value for the range (y-value) Writing functions is pretty simple, once you get the hang of it. Determining a Function using Various Methods Got any questions? Drop them in the comments below!
3.1 Relations
Remember: Relations = sets of order pairs (x, y) Domain = x values, or the set of first components Range = y values, or the set of second components Mapping Diagrams Finding the Domain and Range from a Graph Have any questions? Leave them in the comments below!
2.6 Special Factors
Remember: Difference of Squares: a2 – b2 = (a + b)(a – b) Factoring Perfect Square Trinomials: a2 + 2ab + b2 = (a + b)2 a2 – 2ab + b2 = (a – b)2 General Factoring for Special Factors Factoring Perfect Square Trinomials
2.5 Factoring ax^2 + bx + c
Tip: use the FOIL method and the ac- method to help solve these problems! General Factoring for ax2 + bx + c If you have any questions, leave them in the comment box below!
2.4 Factoring x^2 + bx + c
When factoring, look for two factors of c that multiply to the last term and add to the coefficient of the middle term Finding the Unknown Value of a Trinomial General Factoring for x2 + bx + c Got questions? Leave them down below!