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Find the equation of the line parallel to y = 2x - 6 that passes through the point (3, -8) and write it in slope-intercept form.

User Avie
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2 Answers

5 votes

Step-by-step explanation:

the slope-intercept form is

y = ax + b

"a" being the slope, "b" being the y-intercept (the y- value when x = 0, therefore where the line intercepts the y-axis).

a parallel line must have the same slope (in our case : 2).

to get "b" we use the coordinates of the given point in the equation and solve for b :

-8 = 2×3 + b = 6 + b

subtract 6 from both sides :

-14 = b

so, the desired equation is

y = 2x - 14

User IanTimmis
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Final answer:

The equation of the line parallel to y = 2x - 6 that passes through the point (3, -8) is y = 2x - 14.

Step-by-step explanation:

The student is asking for the equation of a line parallel to a given line that passes through a specific point. A parallel line will have the same slope as the given line. Since the equation of the given line is y = 2x - 6, the slope (m) is 2. To find the equation of the parallel line, one can use the slope-intercept form of a line, which is y = mx + b, where 'm' is the slope and 'b' is the y-intercept.

To find the y-intercept (b) for the new line, we plug in the slope (2) and the coordinates of the point (3, -8) into the slope-intercept form equation and solve for b:

y = mx + b

-8 = 2(3) + b

-8 = 6 + b

b = -14.

So, the equation of the line parallel to y = 2x - 6 that passes through the point (3, -8) is y = 2x - 14.

To find the equation of the line parallel to y = 2x - 6 that passes through the point (3, -8), we need to determine the slope of the line first. Since the line we are looking for is parallel to y = 2x - 6, it will have the same slope of 2. Using the point-slope form of a linear equation, we can plug in the slope and the given point to find the equation.

Using the formula y - y1 = m(x - x1), where (x1, y1) is the given point and m is the slope, we have:

y - (-8) = 2(x - 3)

y + 8 = 2x - 6

Finally, rearranging the equation to the slope-intercept form y = mx + b, we get:

y = 2x - 14

User Uneakharsh
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