Find, in standard form, the equation of the line that is parallel to y = 4x + 2 and passes through (5, -5)

Answer :

Answer:

The equation of the line that is parallel to

[tex]y=4x+2[/tex]

and passes through (5,-

Explanation:

We want to find the standard form equation of the line that is parallel to

[tex]y=4x+2\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots.(1)[/tex]

and passes through the points (5, -5)

The equation of the line given above has slope of 4 units, and y-intercept of 2.

Any equation with the slope 4 units and a different y-intercept from 2 - is a parallel line with the line in equation (1).

Let this parallel line be:

[tex]y=4x+b\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots.(2)[/tex]

Since this line passes through (5, -5), we have x = 5, and y = -5. Substituting these valeus of x and y in equation (2), we can easily find the value of the y-intercept b

[tex]\begin{gathered} -5=4(5)+b \\ \\ -5=20+b \\ \\ \text{Subtract 20 from both sides} \\ -5-20=b \\ b=-25 \end{gathered}[/tex]

Therefore, the equation of the line is:

[tex]y=4x-25[/tex]