-4 is greater, since it is closer to 0 than 7. a great way to solve this questions is to make a number line!
Perpendicular has slope tha multiplies to -1
y=mx+b
m=slope
y=1/3x+b
1/3=slope
1/3 times what=-1?
-3 is answer
y=-3x+b
find b
given
(2,1)
(x,y)
x=2 and y=1 is a solution
1=-3(2)+b
1=-6+b
add 6
7=b
y=-3x+7
B is answer
the slope is 9 and the y-intercept is - 2
the equation of a line in ' slope-intercept form ' is
y = mx + c ( m is the slope and c the y-intercept )
y = 9x - 2 is in this form
with slope m = 9 and y-intercept c = - 2
where is the original shape coordinates because we need the original coordinates to answer ir
18. -500 + 250 = -250
19. -550 - 300 = - 850
20. 116 - (-50) = 116 + 50 = 166
21. 2500 + 1800 - 2200 = 2100
