Answer:
Subtract 
from both sides.
Step-by-step explanation:
We want to isolate the variable 
. To do this, we have to get rid of , which we can do by subtracting itself, since it equals 0.
Answer:
0 because 0 is sea level, anything below is negative and anything above is positive.
Step-by-step explanation:
Answer:
The answer is b
Step-by-step explanation:
Answer:
y=-3x+4
Step-by-step explanation:
The question is asking for the equation in slope-intercept form. This is y=mx+b where m is the slope and b is the y-intercept.
The slope can be found by counting the units in between two points on the graph. Remember that slope is rise over run or y/x. Two points on the graph are (2,-2) and (1,1). The y is increasing by 3 while x is decreasing by 1. This means the slope is -3.
The y-intercept is where the line intersects with the y-axis. In this case, that point is (0,4). Therefore, b=4.
The final answer is y=-3x+4.
