9 L 2 Maths Mrs Russell Week of

9 L 2 Maths Mrs Russell Week of 01/06

Challenge Activities if you’re bored (these are optional) Email me (jrussell@sjfchs. org. uk) if you have done them so that I can be impressed! https: //nrich. maths. org/8280 https: //nrich. maths. org/7452

Monday 01/06 Parallel and Perpendicular Gradients

1. Reciprocals Watch the video and try the questions https: //corbettmaths. com/2012/08/21/reciprocals-2/ Remember, to find the reciprocal of a number turn it into a fraction and then turn it upside down. Continued on next slide

2. Parallel Gradients Watch the video and do the questions https: //corbettmaths. com/2013/06/06/graphs-parallel-lines/ Continued on next slide

3. Perpendicular Gradients Watch the video and do the questions https: //corbettmaths. com/2013/06/06/perpendicular-lines-2/ Please note the link between reciprocals and perpendicular gradients! Extension on next slide

Extension questions (optional)

Answers To find your answers go to the link below and check the questions you have done. 1 https: //corbettmaths. com/wpcontent/uploads/2018/12/Fractions-Reciprocals-Answers. pdf 2 and 3 https: //corbettmaths. com/wpcontent/uploads/2019/08/perpendicular-lines. pdf

Friday 05/06 Straight Line Graphs Mixture and Recap

Starter Answer on next slide Work through the 20 questions on the right, shading in your answers in the grid. Then you have finished there should be 5 unshaded boxes. Write those terms in the 5 boxes at the bottom and add them to get the missing expression.

Your final sum should be 1

Recap all the things you have learnt about graphs in the last few weeks by watching the videos again, trying the mymaths lessons or reading through your notes and making sure they make sense. You should be able to: 1. Draw a straight line onto axes, given an equation 2. Know what the gradient is and three methods of finding it 3. Recognise the equation, given the line 4. Find the equation of a line given the gradient and a point on the line 5. Find the midpoint of a line 6. Recognise the special cases 7. Find perpendicular gradients

Do the questions, showing your method clearly as usual Find the gradient, using three different methods (if you aren’t given coordinate you can choose your own) Continued on next slide

Do the questions, showing your method clearly as usual Continued on next slide

Do the questions, showing your method clearly as usual (Ignore the weird numbering: match the graph to the equation

Answers Gradients: 2, ¼, -1/2 1. a. y = x + 1 b. y = 2 x + 1 c. y = -x + 4 d. y = 2 x + 2 e. y = x + 3 f. y = 3 x + 2 2. a. (4, 6) d. (-2, -7) 3. a. Should go through (0, 1) and (-0. 5, 0) b. Should go through (-2, 0) and (1, 1) c. Should go through (0, 4) and (2, 0) d. Should go through (0, 7) and (1, 5) 25 and d 26 and f 27 and e 28 and c 29 and b 30 and a a. A and D b. C and E