The answer would be stem and leaf plot
2) y=mx+b
y=-1/2x-2
b=-2 & m= -1/2 down negative one, right two (+)
Answer:
4. supplementary
5. complementary
Step-by-step explanation:
4 is supplementary because the sum of the two angles is 180°.
5 is complementary because the sum of the two angles is 90°.
Answer:
x = 3
y = 4
Step-by-step explanation:
-4x+2y=-4 -----(eq1)
4x-5y=-8 ------(eq 2)
by elimination,
(eq1) + (eq 2),
(-4x+2y) + (4x-5y) = -4 + (-8)
-4x+2y + 4x-5y = -4 -8
2y-5y = -12
-3y = -12 (divide both sides by -3)
y = -12 / (-3) = 12/3 = 4 (sub back into (eq 1) )
-4x+2y=-4 -----(eq1), when y = 4,
-4x+2(4)=-4
-4x+8 = -4 (subtract 8 from both sides)
-4x= -4 - 8
-4x= -12 (divide both sides by -4)
x = -12 / (-4) = 3
