EXample: y=3+2X inTercept: a=3 cR Slope:b=△y△X=2 Shifts of a straight line cR Changes in the intercept y=7+2x y=-2+2X CHAnges in the slope y=3+5 y=3+1X Example: y=3+2x Intercept: a=3 Slope: b=y/ x=2  Shifts of a straight line Changes in the intercept  y=7+2x  y=-2+2x Changes in the slope  y=3+5x  y=3+1x