To find the equation of a line that is perpendicular to the line given by (3y = x - 4), we first need to determine the slope of that line. Rearranging it into slope-intercept form (y = mx + b), we find the slope (m = \frac{1}{3}). The slope of the perpendicular line will be the negative reciprocal, which is (-3).
Using the point-slope formula (y - y_1 = m(x - x_1)) with the point ((-2, 1)) and slope (-3), the equation becomes (y - 1 = -3(x + 2)). Simplifying this gives us (y = -3x - 5) in slope-intercept form.
5
The mid-point is needed when the perpendicular bisector equation of a straight line is required. The distance formula is used when the length of a line is required.
Equation: 3x+4y = 0 => y = -3/4x Perpendicular slope: 4/3 Perpendicular equation: 4x-3y-13 = 0 Equations intersect at: (2.08, -1.56) Distance from (7, 5) to (2.08, -1.56) = 8.2 units using the distance formula
Equation: y = 2x+10 Point: (2, 4) Perpendicular slope: -1/2 Perpendicular equation: y-4 = -1/2(x-2) => 2y = -x+10 Both equations intersect at: (-2, 6) Using distance formula: (2, 4) to (-2, 6) = 2 times square root of 5
(I am going to assume you are higher or in grade 9 math) So use the y=mx + b Use the negative reciprocal of the "m"(slope) part. Do this by simply flipping the fraction. This slope will be perpendicular to the original formula.
General formula
5
The mid-point is needed when the perpendicular bisector equation of a straight line is required. The distance formula is used when the length of a line is required.
Equation: 3x+4y = 0 => y = -3/4x Perpendicular slope: 4/3 Perpendicular equation: 4x-3y-13 = 0 Equations intersect at: (2.08, -1.56) Distance from (7, 5) to (2.08, -1.56) = 8.2 units using the distance formula
Equation: y = 2x+10 Point: (2, 4) Perpendicular slope: -1/2 Perpendicular equation: y-4 = -1/2(x-2) => 2y = -x+10 Both equations intersect at: (-2, 6) Using distance formula: (2, 4) to (-2, 6) = 2 times square root of 5
(I am going to assume you are higher or in grade 9 math) So use the y=mx + b Use the negative reciprocal of the "m"(slope) part. Do this by simply flipping the fraction. This slope will be perpendicular to the original formula.
Known equation: y = 2x+10 Perpendicular equation: 2y = -x+10 Both equations intersect at: (-2, 6) Distance from (2, 4) to (-2, 6) is sq rt of 20 using the distance formula
Known equation: y = 2x+10 Perpendicular equation through point (2, 4): 2y = -x+10 Both equations intersect at: (-2, 6) Perpendicular distance from (2, 4) to (-2, 6) is 2 times square root of 5 by using the distance formula
it is the slope formula in the equation it is the slope formula in the equation
Line equation: 2x-y-5 = 0 => y = 2x-5 Perpendicular slope: -1/2 Perpendicular equation: y--2 = -1/2(x-2) => x+2y = 0 Both equations intersect at: (2, -1) Using distance formula from (4, -2) to (2, -1) = square root of 5
If you think to magnetite and to a chemical formula (not equation) this formula is Fe3O4.
Area of a triangle = 0.5*base*perpendicular height Area of a parallelogram = base*perpendicular height