19(a)Straight Line Graphs GradientEasy1 markLine L has the equation y=3x+7.Write down the gradient of line L.AnswerGrade answerSolutionGrading criteria
19(b)(i)Straight Line Graphs GradientEasy1 markPoint P and point W lie on line L. P has coordinates (4,p) and W has coordinates (w,−11).Work out the value of p.p=Grade answerSolutionGrading criteria
19(b)(ii)Straight Line Graphs GradientEasy2 marksWork out the value of w.w=Grade answerSolutionGrading criteria