Answer:

Step by step explanation:
Distribute the x as well as the -4
x * x = x^2
x * 2 = 2x
-4 * x = -4x
-4 * 2 = -8
Combine all the like terms, which means terms with the same variable or regular integers must be either added or subtracted amongst each other.
2x + -4x = -2x
The final answer after combining all the like terms is
x^2 - 2x - 8
W=wind
p + w=158...p=158-w
p-w=112...p=112+w
SO 158-w=112+w
46=2w
23=w
SO in conclusion you have the correct answer of wind being 23km/h while the plane is going 135 km/h
HOPE THIS HELPS!
Answer:
where is the picture ?
Step-by-step explanation:
Plug in (7, 12) for x and y in the equation.
12 = 2(7) + 1
12 = 14 + 1
12 ≠ 15
Therefore, (7, 12) is not on the straight line equation.