# Find a direct algebraic relationship between and

### What are the different types of mathematical relationships?

(a) Find the points deter- mined by t = -3, -2, -1, 0, 1, 2, and 3. (b) Find a direct algebraic relationship between x and y and determine whether the parametric. Find a direct relationship between x and y.x = 3t and y = 2t + 7 Find a direct relationship between x and y. x = 3t and y = 2t + 7. Select one: a. y = 6x. b. y = x + 7. Direct variation problems are solved using the equation y = kx. Step 1. Step 2: Use the information given in the problem to find the value of k. In this case, you.

Direct Relationships A direct relationship is proportional in the sense that when one variable increases, so does the other. Using the example from the last section, the higher from which you drop a ball, the higher it bounces back up.

A circle with a bigger diameter will have a bigger circumference. If you increase the independent variable x, such as the diameter of the circle or the height of the ball dropthe dependent variable increases too and vice-versa. Sciencing Video Vault A direct relationship is linear. Pi is always the same, so if you double the value of D, the value of C doubles too.

The gradient of the graph tells you the value of the constant. Inverse Relationships Inverse relationships work differently. If you increase x, the value of y decreases. For example, if you move more quickly to your destination, your journey time will decrease.

In this example, x is your speed and y is the journey time.

However, if the relationship is an inverse one, the dependent variable gets smaller when the independent one increases, and the graph curves toward smaller values of the dependent variable. Certain pairs of functions provide a third example of inverse relationships. Sciencing Video Vault Inverse Mathematical Operations Addition is the most basic of arithmetic operations, and it comes with an evil twin — subtraction — that can undo what it does.

Let's say you start with 5 and you add 7. You get 12, but if you subtract 7, you'll be left with the 5 with which you started. The inverse of addition is subtraction, and the net result of adding and subtracting the same number is equivalent of adding 0.

## SOLUTION: Find a direct relationship between x and y. x= t-6 y= t^2-5t

A similar inverse relationship exists between multiplication and division, but there's an important difference. The net result of multiplying and dividing a number by the same factor is to multiply the number by 1, which leaves it unchanged.

This inverse relationship is useful when simplifying complex algebraic expressions and solving equations.

Another pair of inverse mathematical operations is raising a number to an exponent "n" and taking the nth root of the number. Independent variable -An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure.

It is something that depends on other factors. For example, a test score could be a dependent variable because it could change depending on several factors such as how much you studied, how much sleep you got the night before you took the test, or even how hungry you were when you took it.

### Find a direct algebraic relationship between x and y if y=5+t^2 and x=1-t? | Yahoo Answers

Usually when you are looking for a relationship between two things you are trying to find out what makes the dependent variable change the way it does. Inverse Relationship Now, let's look at the following equation: Note that as X increases Y decreases in a non-linear fashion.

This is an inverse relationship. Example of an inverse relationship in science: When a higher viscosity leads to a decreased flow rate, the relationship between viscosity and flow rate is inverse.

Inverse relationships follow a hyperbolic pattern. Below is a graph that shows the hyperbolic shape of an inverse relationship.

Quadratic formulas are often used to calculate the height of falling rocks, shooting projectiles or kicked balls.

## Dependent & independent variables: equation

A quadratic formula is sometimes called a second degree formula. Quadratic relationships are found in all accelerating objects e. Below is a graph that demostrates the shape of a quadratic equation.

Inverse Square Law The principle in physics that the effect of certain forces, such as light, sound, and gravity, on an object varies by the inverse square of the distance between the object and the source of the force.