Answer:

Step-by-step explanation:
Use a slope form.
<u>Slope:</u>

y₂ = (17)
y₁ = (1)
x₂ = (2)
x₁ = (-2)
Then, rewrite the problem.
Solve.

Therefore, the slope is 4, which is our answer.
I hope this helps you! Let me know if my answer is wrong or not.
 
        
             
        
        
        
Explanation:
Regardless of the number of factors, the product will be negative if an odd number of factors are negative.
In the example, 3 of the factors are negative. 3 is an odd number so the product will be negative.
   -2*-3*-1*1 = -6
_____
Of course, the product will be zero if any factor is zero, regardless of the signs of any other factors.
 
        
             
        
        
        
Answer:
4 hours
Step-by-step explanation:
The general formula for distance, rate and time is: 
d = rt, where distance is the product of rate multiplied by time 
Given that one train is moving at a rate of 70 mph and one is moving at a rate of 62 mph in the opposite direction, the combined distance over time is equal to 528 miles.  Using the variable 't' for time: 
70t + 62t = 528 
Combine like terms: 132t = 528 
Divide both sides by 132: 132t/132 = 528/132  or t = 4 hours 
 
        
                    
             
        
        
        
Interest = PRT /100
500 = 2000*2.5*T / 100
5000T = 50,000
T = 50,000 / 5000 = 10 years