7(a)Straight Line Graphs GradientEasy1 markFind the equation of the line perpendicular to line L that passes through the point (−1,5).Equation of perpendicular lineAy=2Bx=1Cx=−1Dy=−1Ey=5Fx=−5Gx=5Grade answerGrading criteria
7(b)Straight Line Graphs GradientEasy2 marksFind the coordinates of the point where line L intersects the line y=20−6x.x-coordinate of intersectiony-coordinate of intersectionGrade answerGrading criteria