The graph shows a
piecewise function, meaning that different functions are shows at different intervals (ranges of x-values).
1) One of the graphs is part of a parabola, meaning the equation is quadratic (has

). That equation must be

.
2) The other graph is a straight line, meaning it must be a linear equation. That equation must be x + 4.
Looking at the entire graph, you can see that the parabola starts from the left and ends with an open circle at x=2. An open circle means that the graph doesn't have a value at that point, x=2. The linear line starts with a filled point at x=2 and continues to the right. That means we're looking for the choice where:
1)

Since x=2 cannot be a point in the graph, and less than 2 means that the graph includes everything to the left of 2, but not including 2
2)

Since x=2 is a point in the graph, and greater than or equal to 2 means that the graph includes 2 and everything to the right of it
------
Answer: C)
Answer:
1 / 20
Step-by-step explanation:
Brian = 11.74 seconds
Luis = 11.69 seconds
Difference between their times :
11.74 - 11.69 = 0.05
Expressed as a fraction of a second :
0.05 / 1 = (0.05 * 100) / (1 * 100) = 5 /100 = 1/20
Answer:
y= 10 - 1/4x (FOR LIN)
y=20 - 2/3x ( FOR DIEGO)
Y is what you want , 10 or 20 is what you start with .. whatever amount they drink per second you put in front of x which is the amount of seconds .
I think A is 145m...
200m+ (-55m) since the submarine is under water it will be negative which ends up to be 145m
Answer:
They must have the same slope, but different y-intercepts
Step-by-step explanation:
Slope is rise over run, or the rate of change