A-Level Maths: B7-22 [Graphs: Examples of Sketching Translated Reciprocal Graphs]

[youknownothing]

Getting ready for A-level maths next year. Really helpful.

[misan]

3:23 sir why do you move it to the right when it's minus

[ameliesymmons]

Thank you so much that was really helpful!

[AceOfHearts]

11:05, would I be right to say that via the BIDMAS method the minus would be considered first before the translation of +6?

[christina]

how is it a positive on q5 for (x-3)2 if its inside the bracket?
sorry im confused

[seb]

At 3:23 why do we move it to the right when its -2? Thank you for the vid btw

[primsiren]

I'm having trouble deriving what y = 1 /2-x would look like from y = 1 /x.

if i do y = 1/-x first i get the y = 1/x reflected in the y -axis, which is fine, but then if i add the 2
(y =1/2-x) i get a translation of 2 spaces left, which is incorrect, it should be 2 spaces right.

if i do y = 1/x-2 first i get a translation 2 units right, which is fine, but then when i multiply the bottom by -1 i get y = 1 / 2 - x, and since we have multiplied the x by -1, we reflect in the y-axis and get y = 1/2-x as being y = 1/-x translated 2 to the left.

can you explain how you would go about doing it so that you get the right answer, and what i am doing wrong.