... A good day to you, Regarding y = SQR(- x), before graphing such a function I personally like to know from the beginning its domain, by setting - x >/= 0 x x - 3 >/= 0 x >/= 3 or [3, +inf.), at least you know now that the graph starts at x = 3 and all the way to + inf. But of course this is only my way of dealing with even SQRT functions ... Thank you for your instructive math efforts, Jan-W
... A good day to you, Regarding y = SQR(- x), before graphing such a function I personally like to know from the beginning its domain, by setting - x >/= 0 x x - 3 >/= 0 x >/= 3 or [3, +inf.), at least you know now that the graph starts at x = 3 and all the way to + inf. But of course this is only my way of dealing with even SQRT functions ... Thank you for your instructive math efforts, Jan-W
That also works well! Let me pin your comment 😁👍
@@GlassofNumbers ...I just wanted to add another short (a bit tricky) example: y = SQRT(3 - x); also in this case by setting 3 - x >/= 0 x
what would happen if we have a number after the y =? like y = 2 square root x - 1 ?
Good question! That will be a vertical stretch. I will make a video on it soon!