you put it at a 90 degree angle
You switch the x and y coordinates of the line. In other words, (x,y) ---> (y,x). I hope this helps! :)
substitute x = y and y = -x Ex: y = x2 becomes -x = y2
x=y is the diagonal line which runs through 0,0 so all you have to do is reflect the triangle on the diagonal line. hop that helps :)
f(x) = x + 1, to reflect this across the y-axis you need to reverse all the x values. Essentially, what this means is that, you rewrite f(x) as f(-x) making the function, -x + 1.
0, 1 1, 0
If you reflect a function across the line y=x, you will have a graph of the inverse. For trigonometric problems: y = sin(x) has the inverse x=sin(y) or y = sin-1(x)
a vertical line at x=3
(-2,3) reflected over y = x is (3,-2) (400,-2) reflected over y = x is (-2,400) All you do is switch the ordered pair.
No, they are perpendicular.
5
The diagonal line collapses into a single point on that line.