Please help fast i have a exam

D. K'(-4, 8)

Step-by-step explanation:

Given the coordinate  (x,y), if this coordinate is dilated by a factor of k, the resulting coordinate will be expressed as (kx, ky). Note that each coordinate is multiplied by the scale factor.

Similarly considering the coordinate K(-1, 2) according to the question. If this coordinate is dilated by a factor of 4, the resulting coordinate is expressed as;

= K'(4(-1), 4(2))

= K' (-4, 8)

Hence the coordinate of K' will be at (-4, 8)

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b