The graph shows an image of a dilation about the origin with a scale factor of One-half. On a coordinate plane, point A prime is (negative 4, negative 6) and points B prime is (4, 8).

What are the coordinates of the pre-image of A prime, point A?
(–8, –12)
(–12, –8)
(–2, –3)
(–3, –2)

answer: 25.4 units

step-by-step explanation: radius = 12.7 units

diameter = twice the radius

diameter = 12.7 x 2

= 25.4

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

hi! i think the answer is 1/2 : )

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1