Afigure has a vertex at (-1,-3). if the figure has a line symmetry about x-axis , what are the coordinates of another vertex of the figure?
a. (3,1)
b. (-1,3)
c. (-3,-1)
d. (1,-3)

b. (-1,3)

Step-by-step explanation:

the  image of the point (x ; y)  by symmetry about x-axis is : ( x ;-  y)

so the answer "b" : (-1,3)

where is the figure

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11