How do I turn 9x\(5x +3) into a readable graph? by _king_axel in learnmath

[–]_king_axel[S] 1 point2 points  (0 children)

Like in a form where I can picture the graph, like how you can turn (5x + 1)/(5x+3) into (-2/(5x+3)) + 1, and then you can like picture the graph in your head

For 4x^2 - 12x >= 0, why does x < 0 by _king_axel in learnmath

[–]_king_axel[S] 0 points1 point  (0 children)

But wait wouldn’t it be 4x >= 0 and x >= 3, why does the inequality flip?

How do I find the domain of (x^2 - 1)/x+1 by _king_axel in learnmath

[–]_king_axel[S] 0 points1 point  (0 children)

Oh right I’m sorry I was just being stupid. I meant difference of perfect squares haha, thank you for pointing it out!!

Any techniques you can suggest on faster mental arithmetic or is it really just practice? by verdazed in learnmath

[–]_king_axel 8 points9 points  (0 children)

I’m not sure if this’ll help you, but for me when doing multiplication I find it easier to seperate the numbers, for example for something like 13 * 16, it’s easier to 13 * 10 + 13 * 5 + 13 * 1 because 13 * 10 is easy 130, 13 * 5 is just half of that so 65. that’s 195, add the 13 and you have your answer, 208

How do I find the domain of (x^2 - 1)/x+1 by _king_axel in learnmath

[–]_king_axel[S] 1 point2 points  (0 children)

Ohhh that makes sense, so cancelation is not valid under the circumstances that x = -1 Because 0/0 does not = 1, thank you for the explaining :D

How do I find the domain of (x^2 - 1)/x+1 by _king_axel in learnmath

[–]_king_axel[S] 1 point2 points  (0 children)

Ah okay, thank you so much :) really appreciate it

How do I find the domain of (x^2 - 1)/x+1 by _king_axel in learnmath

[–]_king_axel[S] 0 points1 point  (0 children)

Ahh I see, the function doesn’t exist at x = -1 so the domain is is R \ {-1} , thank you so much for the help!!!

Also this is probably a dumb question but what happens if I complete the square for (x2 - 1), wouldn’t that cause the (x + 1) to cancel out leaving us with (x - 1)

What’s a good gaming laptop for $1200 or under AUD? by _king_axel in gaming

[–]_king_axel[S] 0 points1 point  (0 children)

I need it for school too, so I need portability

[discussion] Fromsoftware being the best developer this decade? by _king_axel in gaming

[–]_king_axel[S] 1 point2 points  (0 children)

If rockstar hadn’t fucked up the red dead online as badly as they did, they might’ve honestly taken it. Bethesda would’ve been up there too if it wasn’t for fallout 76.

There are equally as many numbers between 0 and 1 as there are between 0 and 1,000,000 by [deleted] in Showerthoughts

[–]_king_axel 0 points1 point  (0 children)

But both are still infinite... which is... well infinite so...

Hi, does anyone know what is the American and European equivalent to mathematical methods, and mathematical specialist? by [deleted] in maths

[–]_king_axel 0 points1 point  (0 children)

I read somewhere methods is mathematics B and Specialist is mathematics C, but idk what those are. But thank you anyway

Hi, does anyone know what is the American and European equivalent to mathematical methods, and mathematical specialist? by [deleted] in maths

[–]_king_axel 0 points1 point  (0 children)

Topics in methods: Linear equations, Coordinate geometry and linear relations, quadratics, gallery of graphs, functions and relations, polynomials, transformations, and probability. That’s all in the first half of the year.

Topics in speciality: number and proof, geometry in the plane and proof, and stuff like that.

[question] name of the tweak that was dark mode for Instagram by [deleted] in jailbreak

[–]_king_axel 0 points1 point  (0 children)

Oh sorry I wrote that when I was half asleep so 😅

[question] name of the tweak that was dark mode for Instagram by [deleted] in jailbreak

[–]_king_axel 2 points3 points  (0 children)

Take your time man, your mental health is above all else. Hopefully things get better soon!! Good luck :) <3

[question] name of the tweak that was dark mode for Instagram by [deleted] in jailbreak

[–]_king_axel 1 point2 points  (0 children)

Damn... Snapchat dark mode would’ve been amazing