Find the equation of the line passing through 14 and perpend
Find the equation of the line passing through (1,-4) and perpendicular to y=1/4x-2. Write the answer in slope-intercept form.
Find the equation of the line passing through (1,-4) and perpendicular to y=1/4x-2. Write the answer in slope-intercept form.
Solution
The slope-intercept format for a line is expressed as:
y = mx + b
where m is the slope and b is the y-intercept for the line.
Therefore, the slope of the line y = 1/4x - 2 is equal to 1/4.
For perpendicular lines, the slopes are the negative inverse of each other. Therefore, the slope of the line perpendicular to this line would be -1/(1/4)=-4.
The equation of the line would therefore be:
y = (-4)x + b
We can find the y-intercept \"b\" because we know the line passes thru (1,-4). Therefore we know that x = 1 when y=-4.
Plugging these values into the equation gives:
-4 = (-4)(1) + b
Solving for b, we get
b = -4 +4
b =0
Therefore, the equation of the perpendicular line is:
y = (-4)x - 0 or y=-4x
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