Answer:
<em>The equation of the straight line in point - slope form</em>
<em>y +1 = -2 ( x-2)</em>
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given points are C( 2,-1) and D(1,1)
Slope of the line
      
    m = -2
<u>Step(ii):-</u>
Equation of the straight line passing through the point ( 2,-1) and having slope 
m =-2
y - y₁ = m ( x- x₁)
y - (-1) = -2 ( x-2)
y +1 = -2 ( x-2)
<u><em>Final answer:-</em></u>
<em>The equation of the straight line</em>
<em>y +1 = -2 ( x-2)</em>
 
        
             
        
        
        
Answer:
I'm not able to answer your question
Step-by-step explanation:
due to the fact that you can't divide with multiplication I'm unsure on how to help you
 
        
             
        
        
        
Answer:
Obi's age is 18 and Oba's age is 9
Step-by-step explanation:
Let Obi's age be x and Oba's age be y
<u><em>Condition 1:</em></u>
x = 2y -----------(1)
<u><em>Condition 2:</em></u>
(x-4) = 3(y-4)
=> x -4 = 3y-12
=> x - 3y = -9  -----(2)
<u><em>Putting eq (1) in (2)</em></u>
2y - 3y = -9
=> -y = -9
=> y = 9
Now,
 x = 2y
=> x = 2(9)
=>  x= 18
 
        
                    
             
        
        
        
Answer:
$11.25
Step-by-step explanation:
1.25 × 9 = 11.25