Question
Make and test a conjecture about the square of even numbers
Hint:
Inductive Reasoning is the process of drawing a general conclusion by observing a pattern based on the observations and this conclusion is called conjecture.
Deductive reasoning is the process by which a person makes conclusions based on previously known facts.
The correct answer is: Hence, we conclude that the square of every even number is a multiple of 4 and we have proved this conjecture by deductive reasoning.
Let’s create a conjecture for the even numbers 2, 4, 8, and 10. We are asked to make a conjecture about the square of even numbers.
So first, do the square of the assumed even numbers. We got
22 = 4 = 4 × 1
42 = 16 = 4 × 4
82 = 64 = 4 × 16
102 = 100 = 4 × 25
So, we conclude that the square of every even number is a multiple of 4 and this is the conjecture.
Now, let’s see if the conjecture is true or not by deductive reasoning. Let’s say the even number is x. This even can be written as
x = 2k (where k is some integer)
Now, squaring both sides
x2 = (2k)2
= 4k2
44k2 is divisible by 4
Final Answer:
Hence, we conclude that the square of every even number is a multiple of 4 and we have proved this conjecture by deductive reasoning.
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Mathematical expressions are made up of at least two numbers or variables, one math operation, and a sentence. This mathematical operation allows you to multiply, divide, add, or subtract numbers.
¶Types of Expression
1. Arithmetic operators and numbers make up a mathematical numerical expression. There are no symbols for undefined variables, equality, or inequality.
2. Unknown variables, numerical values, and arithmetic operators make up an algebraic expression. There are no symbols for equality or inequality in it.
¶In contrast to equations, the equal (=) operator is used between two mathematical expressions. Expressions denote a combination of numbers, variables, and operation symbols. The "equal to" sign also has the same value on both sides.
Two rival dry cleaners both advertise their prices. Let x equal the number of items dry cleaned. Store A’s prices are represented by the equation 15x - 2. Store B’s prices are represented by the expression 3 (5x + 7). When do the two stores charge the same rate ? Explain.
Mathematical expressions are made up of at least two numbers or variables, one math operation, and a sentence. This mathematical operation allows you to multiply, divide, add, or subtract numbers.
¶Types of Expression
1. Arithmetic operators and numbers make up a mathematical numerical expression. There are no symbols for undefined variables, equality, or inequality.
2. Unknown variables, numerical values, and arithmetic operators make up an algebraic expression. There are no symbols for equality or inequality in it.
¶In contrast to equations, the equal (=) operator is used between two mathematical expressions. Expressions denote a combination of numbers, variables, and operation symbols. The "equal to" sign also has the same value on both sides.
