CORE 1 for Edexcel www.doyourmath.co.uk C1 : Sketching and Transforming graphs questions Name: Percentage: Class: Effort: 1. The above figure shows a sketch of the curve with equation y=x(x-2)(x+3) . The graph crosses the x-axis at the points (0,0) , (2,0) and (-3,0). In separate diagrams, sketch the curves with the following equations. On each diagram show clearly the coordinates of each point at which the curve crosses the x-axis. a) y=f(2x) b) y=f(x-3) c) y=f(-x) d) y=-f(x) (8) 2. The above figure shows a sketch of the curve with equation y=(x-1)2 x . The graph crosses the x-axis at the point (0,0) 1 4 and touches the x-axis at (1,0). The maximum point on the curve is ( , ) .In separate diagrams, sketch the curves 3 27 with the following equations. On each diagram show clearly the coordinates of each point at which the curve crosses the x-axis and the coordinates of the vertex. 1 a) y=f( x) 2 b) y=f(3+x) c) y=f(-x) d) y=-3f(x) e) The maximum point of the curve f(x+a) is on the y-axis. Write down the value of the constant a. (13) Mr Petros www.doyourmath.co.uk CORE 1 for Edexcel www.doyourmath.co.uk 3. The above figure shows a sketch of the curve with equation y=f(x). The graph has a maximum point B(-1,0), a minimum point A(1,-4), x-intercept +2 and y-intercept -2. In separate diagrams, sketch the curves with the following equations, showing clearly the coordinates of each point at which the curve crosses the x-axis and the coordinates of both vertices (max and min). a) Write down the equation of this curve. Sketch b) y=f(x-2) c) y=f(-x) d) y=f(2x) e) y=f(x)-3 f) The y-intercept of the curve f(x)+a is 0 (zero). Write down the value of the constant a. (14) Mr Petros www.doyourmath.co.uk CORE 1 for Edexcel www.doyourmath.co.uk 4. The above figure shows a sketch of the curve with equation y = f(x) where 𝑥 𝑓(𝑥) = , 𝑥 ≠ −3 𝑥+3 The curve passes through the origin and has two asymptotes, with equations y = 1 and x = -3, as shown in the Figure. (a) In the space below, sketch the curve with equation y = f(x − 4) and state the equations of the asymptotes of this curve. (3) (b) Find the coordinates of the points where the curve with equation y = f(x − 4) crosses the coordinate axes. (4) 5. Given that 𝑓(𝑥) = 2 , 𝑥≠0 𝑥 (a) Sketch the graph of y = f(x) - 3 and state the equations of the asymptotes. (4) (b) Find the coordinates of the point where y = f(x) - 3 crosses a coordinate axis. (2) Overall, for this work I think my success level is: Mr Petros Low O High O www.doyourmath.co.uk O O CORE 1 for Edexcel www.doyourmath.co.uk Skill Qu I can sketch a translation of a given graph I can sketch a reflection of a given graph I can sketch an enlargement of a given graph I can write down the equation of a cubic given its graph and vice versa (sketch the cubic given its equation) I can sketch the graph of a basic reciprocal function (1/x) and identify its asymptotes I can sketch a graph of the transformation of the basic reciprocal function and identify its asymptotes and the points of intersection with both the axes I can sketch the transformation of ANY reciprocal function and identify its asymptotes and the points of intersection with both the axes Did your score match your estimated ‘success level’ ? Yippee!! - I got all the questions correct. I got most of the questions correct. I made too many mistakes and need to practise this topic more. Top 3 topics I need to study further are: ☺ ☺ ☺ Mr Petros www.doyourmath.co.uk