What is the image of a(8,2) under r90 ?
a. (-2,8)
b. (2,8)
c.( 8,-2)
,2)

A. (-2,8)

Step-by-step explanation:

We know that the rule for rotation of is given by :-

, where (x,y) is the point of pre-image and (-y,x) is a point of image.

The given point of pre-image : A(8,2)

Then after rotation of  , we have the image point as :-

Hence, the image point of A(8,2) is (-2,8) .

nswer: a   y-axis

step-by-step explanation:

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: