# [S2] LESSON 37 : Maths EOY Revision – Linear & Quadratic Graphs Updates/Debrief

[S2 Maths + Science PMCians]

What we did in 2 hours:

This lesson, we did our Maths EOY Revision on Linear and Quadratic Graphs.

A few key points to take note for this topic:

Linear Graph –

1) y = mx + c, where m is the gradient of line and c is the y-intercept.

2) Gradient (steepness of line) = (y2-y1)/(x2-x1).

gradient of an upslope line = +ve number

gradient of a downslope line = -ve number

gradient of a horizontal line = 0

gradient of a vertical line is undefined.

1) y = ax^2 + bx + c, where c is the y-intercept.

2) Shape of graph:  a > 0 is a happy face, whereas a < 0 is a sad face.

*Let x = 0 to find y-intercept and let y = 0 to find x-intercept.

Please take time to attempt the additional Linear and Quadratic Graphs questions available in the workbook. The solutions are available here: : https://tinyurl.com/yxw45t9y

Special Mention:

Lesson 40 was brought forward to 15th September. We revised the topics on Proportion and Map & Scales. The questions and worked solutions that we went through in Chat Challenge can also be found in the link provided above.

Next lesson, we will continue with our Maths EOY Revision on Mensuration and Congruency & Similarity.

Till then, stay healthy and see you again soon! 🙂

The S2MA+SCI Team

A free ticket to your friend

We are pleased to inform you that you will able to redeem a ticket for your friend to attend lesson with you. This is free of charge!. You may redeem this ticket via your PMC student portal under Referral & Rewards. PMC HQ will contact you via WhatsApp for the name and contact of your guest to send the free ticket and access to attend her preferred lesson.

What you need to know

1) This ticket can only be redeemed ONCE per PMC student.
2) The guest must attend lesson either onsite or online with you at the same timeslot.

3) There will be absolutely no sales talk before or after the lesson.

4) There is no obligations to sign up regular lessons after the lesson.
5) If the guest is keen to join us in the future session, they will register online or contact PMC HQ.
6) Free ticket only applies to non PMC students who have never attended any PMC lessons before.

7) Redemption period strictly before 30 September.