The answer is 20 since 1/5 of 20 is 4, and 20 + 4 = 24.
        
                    
             
        
        
        
<span>y=−3x+2</span> is a linear equation in slope-intercept form with
slope <span>m=<span>(−3)</span></span>
(and y-intercept <span>=2</span>)
We want the equation of a line with slope <span>m=<span>(−3)</span></span> through the point <span>(<span>−2</span>,<span>−8</span>)</span>
Using the point-slope linear equation form:
<span><span>(y−<span>(−8)</span>)</span>=<span>(−3)</span><span>(x−<span>(−2)</span>)</span></span>
Simplifying
<span>y+8=−3x−6</span>
or, in standard form
<span>3x+y=−<span>14</span></span>
 
        
             
        
        
        
Answer: x + y = z
Example:
Lets say if x 5 and y is 10 then z would equal 15.
 
5 + 10 = 15
Hope this helped! :)
 
        
             
        
        
        
Answer:
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Step-by-step explanation:
Given
In 1990; Income= $39000
In 2010; Income= $70768
Solving (a): An equation in form of f(x) = ax + b
First, we need to determine the slope, a

Taking y as income and x as year index.
When x = 0; y = 39000
When x = 20; y = 70768
Substitute these values in the above formula



Next, is to determine the formula using:

<em>Considering :When x = 0; y = 39000, we have</em>
<em /> <em />
<em />
<em /> <em />
<em />
<em>Make y the subject of formula</em>
<em /> <em />
<em />
<em />
<em>Express y as a function of x</em>
<em /> <em />
<em />
Solving (b): Income in 2005
<em>In 2005, x = 15</em>
So:
 becomes
 becomes


 
        
             
        
        
        
Answer:
x=-8, x=0
Step-by-step explanation: