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8 and 10 aren't functions. In a function each input has only one output.
For 8, input 1 = 4, 7
For 10,input 3=7, 6
Answer:
The equation in slope-intercept form of required line is: 
Step-by-step explanation:
We need to write equation in slope-intercept form to represent the line on the graph.
The general equation in slope-intercept form is: 
Where m is slope and b is y-intercept
Finding slope using formula: 
Looking at he graph we have

Putting values in formula and finding slope:

So, we get slope m = 2/3
Using slope m=2/3 and point (3,-4) we can find y-intercept

So, y-intercept b = -6
The equation of line having m=2/3 and b=-6 will be:

The equation in slope-intercept form of required line is: 
Answer:
Step-by-step explanation:
Density = mass/volume
Mass = 280g, volume = 40cm^3
Density = 280/40
Density = 7g/cubic cm
Answer:
Center is the mean, an average of data. Spread is for range and standard deviation.
Step-by-step explanation: