A-Level Maths: B7-02 [Graphs: Sketching Quadratics, Cubics, Quartics and Quintics]

[@CHEESYhairyGASH]

This was perfect, had no idea what I was doing prior to this video. Thank you.

[@GCSEALevelMaths2025]

Excellent video sir good job

[@name2865-n2y]

How would you do it if you had to actually DRAW these curves, e.g the y axis is labelled from -16 to 16 going up in intervals of 1, and x -16 to 16, also going up in intervals of 1.
Would you ever be asked to draw a curve in an exam, or would you only be asked to sketch?

[@TLMaths]

You would only be asked to sketch - you'll never be asked to plot a graph.

[@account-xr4cb]

Hi, just wanted to find out if a quartic be described as a parabola. I have researched this, and have found no clear indication of whether it can be described as one.

[@TLMaths]

No it can't. Only quadratics are parabolas.

[@seef279]

what does it mean for the coefficient of x to be positive? how is the worked out

[@TLMaths]

If you have y = x^2 then the coefficient of x^2 is 1, because we have y = 1x^2. The coefficient would be 2 if we had y = 2x^2. The coefficient would be -1 if we had y = -x^2.

[@Quoii]

How important is it that it looks somewhat to scale? As long as it's not ridiculously off then are we still okay?

[@TLMaths]

As long as you've got the important points identified in the correct places, you should be okay.

[@JK-vm7yo]

Hello im OCR would i need to know past x^5 for AS exams

[@TLMaths]

No

[@shayans7_491]

Does quintic graph ever come up in papers?

[@TLMaths]

You won’t be asked to sketch beyond a quartic