Answer:
You were supposed to use Desmos Graphing Calculator, not actually do this
Graph-A and graph-D could both accurately show the radioactivity of the sample as the weeks go by. The only difference is that 'A' had 20 units of radioactivity when the time began and 'D' had 40 units. But on both of them, any point on the graph is 1/2 the value of what it was a week earlier ... which is exactly what you expect.
The equation under graph-A is the correct equation of that graph. We don't know anything about the equation under graph-D, because it sank below the bottom of the picture and we can't see it.
The equation of graph-D is
R = 40 (1/2)^x .
If that's not what it says under graph-D, then D is wrong, and only A is a correct answer.
Answer:
1. The median.
Step-by-step explanation:
First arrange in ascending order:
5.8 6.1 6.1 6.2 6.2 6.2 6.3 6.8 6.8 7
The median = 6.2. On the box plot the median is marked at 6.3 so that is incorrect. All the others are correct
Answer:
Y=2/3X—2
Step-by-step explanation:
Move 6x to the other side, divide by 9
ANSWER
y=-1
EXPLANATION
The given line in the graph has equation
This line is a horizontal line.
All horizontal line has a slope of 0.
Let the equation of the line that is parallel to this line be
The slope of this line must also be zero.
We substitute the slope, m=0 and the point (3,-1) into this equation to get:
Hence the required equation is