Answer:
Step-by-step explanation:
Answer:
slope = - 
Step-by-step explanation:
The equation of a line in slope0 intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = -
x + 9 ← is in slope- intercept form
with slope m = - 
4x+7y=47 /*4 ------>16x + 28y=188
5x-4y=-5 /*7 -------->35x-28y=-35
16x + 28y=188, add this two equations
35x-28y=-35
16x + 28y+35x-28y=188-35
16x +35x=188-35
51x =153m
x=3
5x-4y=-5
5*3-4y=-5
15-4y=-5
4y=15+5
4y=20
y=5
Answer (3,5), B
Lines TW and YX are parallel because the angels are congruent (-: