Answer:
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Step-by-step explanation:
Vertical lines never have a defined slope as you can never divide a number by zero
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
55x<=200-65
55x<=135
x<=135\55
x<=2.46
 
        
                    
             
        
        
        
72 percent.
Divide 576 into 800 to get 72%
        
                    
             
        
        
        
Answer: If you want mx + b= y form and you want the y intercept, then the answer would be 2x/7 - 12/7 = y. The y intercept is b, so it is 12/7.
Step-by-step explanation: 2x - 7y = 12
Move -7y to the other side: 2x= 12 + 7y
Subtract 12 to the left side: 2x - 12 = 7y
Then divide 7 into everything: 2x/7 - 12/7 = 7y/7
The 7s in the right side cancel out, so the equation is now: 2x/7 - 12/7 = y
The y intercept is b, which is the second term in the equation, so the 
Y Equals : 12/7
I hope this is what you are looking for!   
 
        
                    
             
        
        
        
-2x^2 + 5x -3 =0
Find the discriminate:
In the given formula a = -2, b = 5 and c = -3
The discriminate is found using the formula b^2 - 4(ac)
Replace the letters with their values:
5^2 - 4(-2*-3)
25 - 4*6
25-24 = 1
When the discriminate is greater than or equal to 0, there are two real solutions.
The answer is c) 2