Answer:
graph 1 proportional
graph 2&3 is non proportional
i think
 
        
             
        
        
        
Answer:

Step-by-step explanation:
The slope-intercept form is given by y=mx+c, where m is the slope and c is the y-intercept.
Slope of given line= 
Parallel lines have the same slope. Thus, the slope of the line would also be  .
.

The value of c can be found by substituting a pair of coordinates.
When x= 4, y= -1,

-1= -3 +c
<em>Add 3 to both sides:</em>
c= -1 +3
c= 2
Thus, the equation of the line is  .
.
Additional:
Do check out the following for a similar question on slope-intercept form!
 
        
             
        
        
        
Answer:
We conclude that the population mean is 24.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 24
Sample mean,  = 22.8
 = 22.8
Sample size, n = 100
Alpha, α = 0.05
Sample standard deviation, s = 8.3
First, we design the null and the alternate hypothesis
 
We use Two-tailed z test to perform this hypothesis.
Formula:
 
Putting all the values, we have
 
We calculate the p-value with the help of standard z table.
P-value = 0.1498
Since the p-value is greater than the significance level, we accept the null hypothesis. The population mean is 24.
Now,  
Since,  the z-statistic lies in the acceptance region which is from -1.96 to +1.96, we accept the null hypothesis and conclude that the population mean is 24.
 
        
             
        
        
        
Answer:
12.3693
Step-by-step explanation:
use distance formula
 
        
             
        
        
        
Answer:
245
Step-by-step explanation:
35                    x
-------             --------
100               700
then you cross multipy and you get 
24500
------------------
100
cross out the zeros
and get 245