Question

Which line has the equation y = -x + 3

Which line has the equation x - 3y = 3?


Determine if the lines 9x - 2y = 16 and 2x - 9y = -18 are parallel, perpendicular, or neither.

Write the equation of the line perpendicular to 9x + 2y = 18 and passes through the point (1, 4).

picture below

Write the equation of the line parallel to x = -16 and passes through the point (9, -10).

Answer 1

in order
DE
GE

Answer 2

9x - 2y = 16
2x - 9y = -18

convert each to slope interscept form
y = (9/2)x + 16
y = (2/9)x - 18
- neither parallel or perpendicular

Answer 3

9x + 2y = 18
y = (-9/2)x + 9
the line perpendicular to this line has slope = 2/9
using y-y1 = m(x-x1)
y - 4 = (2/9) (x-1)
or
9y - 36 = 2x - 2
9y - 2x = 34 is the required equation

Answer 4

sorry i need to go now - back later