Family of Curves
A family of curves is a group of curves that are each described by a parametrization in which one or more variables are parameters. In general, the parameters have more complexity on the assembly of the curve than an ordinary linear transformation. These families appear commonly in the solution of differential equations. When a constant of integration is added, it is normally modified algebraically until it no longer replicates a plain linear transformation. The order of a differential equation depends on how many uncertain variables appear in the corresponding curve. The order of the differential equation acquired is two if two unknown variables exist in an equation belonging to this family.
XZ Plane
In order to understand XZ plane, it's helpful to understand two-dimensional and three-dimensional spaces. To plot a point on a plane, two numbers are needed, and these two numbers in the plane can be represented as an ordered pair (a,b) where a and b are real numbers and a is the horizontal coordinate and b is the vertical coordinate. This type of plane is called two-dimensional and it contains two perpendicular axes, the horizontal axis, and the vertical axis.
Euclidean Geometry
Geometry is the branch of mathematics that deals with flat surfaces like lines, angles, points, two-dimensional figures, etc. In Euclidean geometry, one studies the geometrical shapes that rely on different theorems and axioms. This (pure mathematics) geometry was introduced by the Greek mathematician Euclid, and that is why it is called Euclidean geometry. Euclid explained this in his book named 'elements'. Euclid's method in Euclidean geometry involves handling a small group of innately captivate axioms and incorporating many of these other propositions. The elements written by Euclid are the fundamentals for the study of geometry from a modern mathematical perspective. Elements comprise Euclidean theories, postulates, axioms, construction, and mathematical proofs of propositions.
Lines and Angles
In a two-dimensional plane, a line is simply a figure that joins two points. Usually, lines are used for presenting objects that are straight in shape and have minimal depth or width.
![**Question:**
Which line passes through the point (4, -7) and is perpendicular to the line \( x - 4y = 8 \)?
**Options:**
A. \( y = -\frac{1}{4}x - 11 \)
B. \( y = -4x - 23 \)
C. \( y = -\frac{1}{4}x - 6 \)
D. \( y = -4x + 9 \)
**Explanation:**
To find the line that passes through the given point and is perpendicular to the given line, we need to follow these steps:
1. **Convert the given line to slope-intercept form (y = mx + b):**
The given line equation is \( x - 4y = 8 \).
Solving for \( y \):
\[
x - 8 = 4y \\
y = \frac{1}{4}x - 2
\]
Hence, the slope of the line \( x - 4y = 8 \) is \( \frac{1}{4} \).
2. **Determine the slope of the perpendicular line:**
The slope of a line perpendicular to a line with slope \( m \) is \( -\frac{1}{m} \).
Therefore, the slope of the line perpendicular to \( \frac{1}{4} \) is \( -4 \).
3. **Use the point (4, -7) and the perpendicular slope (-4) to find the line equation:**
Using the point-slope form \( y - y_1 = m(x - x_1) \):
\[
y + 7 = -4(x - 4) \\
y + 7 = -4x + 16 \\
y = -4x + 9
\]
So, the equation of the line passing through the point (4, -7) and perpendicular to \( x - 4y = 8 \) is \( y = -4x + 9 \).
Therefore, the correct answer is:
**D. \( y = -4x + 9 \)**](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F253ec4e6-fefa-47c2-a875-f6d418ff65f8%2F1c29aa5e-d70f-4903-b02c-39425c5f6af2%2Frl3xt8w_processed.jpeg&w=3840&q=75)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
