Required equation in slope intercept form is: 
Step-by-step explanation:
Given
Let m denote the slope of line
m = 5
the line passes though (1,9)
Slope-intercept form of equation of line is:

Putting m=5 in the equation

Putting (1,9) in the equation

Putting the value of b

Hence,
Required equation in slope intercept form is: 
Keywords: Equation, linear equation
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Answer:
X=-22
Step-by-step explanation:
By comparing the perimeters, we can deduce the scaling factor:

The areas scale with the square of the scaling factor, so the new area is

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