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junior college 1 | H2 Maths
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Help Nithy! Anyone can contribute an answer, even non-tutors.
someone help I'm so lost TvT
Date Posted: 1 year ago
Views: 228
When it comes to graphs, theres a few kinds of standard graphs that form 99% of all graph questions.
Parabolas
Circles
Ellipses
Hyperbolas
(These 4 are known as Conic Sections.)
Straight lines(y=mx+c)
Polynomials (Usually max is x^3, sometimes x^4)
Trig functions
Exponentials
Logs
a/x
a/x^2
ax+b+c/(x-d)
(Idk what this last one is called)
This is q a jump from secondary school, so it's okay to struggle with grasping them all at first. Perhaps a good place to start would be to first use GC/desmos to see the shape of the graph. Then consider subbing in a few x values and see what y value you get. That corresponds to the point (x,y). Repeat for as many x values as it takes until you start getting a feel for how the graph comes out of the equation. This will at least give you some sense of why certain equations correspond to certain graphs, as opposed to just memorising which equation=which graph.
Beyond that, when you're faced with a graph you're not familiar with, you can also ask things like:
What x values can I/can I not sub in?
What y values does the graph cover/not cover?
Where is the graph stationary/increasing/decreasing?
All this should help in gaining a fundamental understanding of how graphs work.
If you feel that you need to revisit your secondary sch stuff, by all means do it. You can also consult your math tchr(legit dun paiseh), since they probably will be better at grasping where you stand, and better equipped to answer any questions you may have.
The worst thing you can do when you're faced with something unfamiliar/you don't understand is to do nothing. Any effort you make towards solving a problem will help in improving your understanding of the underlying concepts.
Also, it would be best to point out which questions you haven't figured out yet.(As opposed to sending one entire page of questions.)
H2 Math can be daunting, but it rewards those who make use of what resources they have, and put in the effort to understand concepts from the ground up.
Parabolas
Circles
Ellipses
Hyperbolas
(These 4 are known as Conic Sections.)
Straight lines(y=mx+c)
Polynomials (Usually max is x^3, sometimes x^4)
Trig functions
Exponentials
Logs
a/x
a/x^2
ax+b+c/(x-d)
(Idk what this last one is called)
This is q a jump from secondary school, so it's okay to struggle with grasping them all at first. Perhaps a good place to start would be to first use GC/desmos to see the shape of the graph. Then consider subbing in a few x values and see what y value you get. That corresponds to the point (x,y). Repeat for as many x values as it takes until you start getting a feel for how the graph comes out of the equation. This will at least give you some sense of why certain equations correspond to certain graphs, as opposed to just memorising which equation=which graph.
Beyond that, when you're faced with a graph you're not familiar with, you can also ask things like:
What x values can I/can I not sub in?
What y values does the graph cover/not cover?
Where is the graph stationary/increasing/decreasing?
All this should help in gaining a fundamental understanding of how graphs work.
If you feel that you need to revisit your secondary sch stuff, by all means do it. You can also consult your math tchr(legit dun paiseh), since they probably will be better at grasping where you stand, and better equipped to answer any questions you may have.
The worst thing you can do when you're faced with something unfamiliar/you don't understand is to do nothing. Any effort you make towards solving a problem will help in improving your understanding of the underlying concepts.
Also, it would be best to point out which questions you haven't figured out yet.(As opposed to sending one entire page of questions.)
H2 Math can be daunting, but it rewards those who make use of what resources they have, and put in the effort to understand concepts from the ground up.
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