Can anyone help me on this?

The coordinates of vortex a’ are (8,4) (-4,2) (4,-,4) the coordinates of vortex b’ are (6,6)(12,-,12)(12,12) the coordinates of vortex c’ are(-2,,12)(4,12)(12,-4)

Which point-slope form equation represents a line that passes through (3,-2) with a slope of -4/5

Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box.