# GBC Week One examples (1).pptx - Radicals Simplify Simplify...

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Cartesian CoordinateSystemFour sectionscreated by theintersection to thex and y axisI (+,+)II (-,+)III (-,-)IV (+,-)
Linear EquationsAll variables are raised to the first powerand no cross product of variables occurs(no xy)ax + cy = d
Tobey & Slater,Intermediate Algebra, 6e15Slope of a LineIn a coordinate plane, theslopeof a straight line is defined by the change inydivided bythe change inx.(3, 0)xy123412342341234(0, 2)Change iny =2Change inx =3m = Δy/Δxchange inriseslope=change inrunyx
Tobey & Slater,Intermediate Algebra, 6e16Theslope of a straight linewith points (x1,y1) and (x2,y2) isTheslope of a straight linewith points (x1,y1) and (x2,y2) isSlope of a Linewherex2x1.Example:Find the slope of the line that passes through (1, 2) and (3, 6).2121slope==yymxx2121yymxx623142221
Tobey & Slater,Intermediate Algebra, 6e17Slope of a Straight LineSlope of a Straight Line

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