Answer:
slope = -1.5
Step-by-step explanation:
A set of three or more points are said to be collinear if they all lie on the same straight line.
We have been given the following collinear set of points;
 P(0, 3), Q(2, 0), R(4, -3) 
This implies that P, Q, and R lie on the same line.
The slope of a line is defined as; (change in y)/(change in x)
Using the points P and Q, the slope of the line is calculated as;
(0-3)/(2-0) = -3/2 = -1.5
 
        
                    
             
        
        
        
Answer:
x=4 and x= - 5
Step-by-step explanation:
In order to solve this we should re-arrange the equation:

This is equal to:

Then we can seperate this into:

So solving for x in both cases we get

 
        
             
        
        
        
Answer:
C  a1= -2
     an = an-1 +3
Step-by-step explanation:
an = -2+ (n-1)3
What is the first term?  Let n=1
a1 = -2 + 0*3
a1 = -2
The difference between the  terms is +3  (coefficient on (n-1))
The second term is the first term +3
The third term is the second term plus 3
The next term is the previous term +3
so an = an-1+ 3
 
        
             
        
        
        
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