Find the equation of the line using the point-slope formula. Write the final equation using slope-intercept form. Perpendicular to 5y=x-4 and passes through the point (-2,2)

Slope-intercept form: y = -5x - 8

Point-slope form:  y - 2 = -5(x + 2)

Step-by-step explanation:

Given the equation, 5y = x - 4, which passes through point (-2, 2):

Transform the given equation into its slope-intercept form, y = mx + b.

In order to do so, divide both sides by 5 to isolate y:

5y = x - 4

 ⇒  This is the slope-intercept form of 5y = x - 4.

Next, we must determine the equation of the line that is perpendicular to .    

Perpendicular lines have negative reciprocal slopes.  This means that if we multiply the slopes of two lines, their product will equal to -1.  

In other words, if the slope of the given equation is m₁, and the slope of the other line perpendicular to the given linear equation is m₂, then:  m₁ × m₂ = -1.

If we multiply these two slopes:

Now that we have identified the slope of the other line that is perpendicular to  5y = x - 4, we must determine the y-intercept of the other line.  

Using the slope of the other line, m₂ = -5, and the given point, (-2, 2), substitute these values into the slope-intercept form to find the value of the y-intercept, b:

y = mx + b

2 = -5(-2) + b

2 = 10 + b

Subtract 10 from both sides to isolate b:

2 - 10 = 10 - 10 + b

-8 = b

The equation of the other line that is perpendicular to 5y = x - 4 is:

Linear Equation that is perpendicular to 5y = x - 4 in slope-intercept form:  

The point-slope form is: y - y₁ = m(x - x₁)

In order to rewrite y = -5x - 8 in its point-slope form, we must substitute the value of the given point, (-2, 2) into the point-slope form:

y - y₁ = m(x - x₁)

y - 2 = -5[x - (-2)]

y - 2 = -5(x + 2) ⇒  This is the point-slope form of the line that is perpendicular to 5y = x - 4.

to rewrite a literal equation you may need to divide by a number, or by a variable.

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