The answer is D. Think of the Pythagorean Theorem which states that a^2 + b^2 = c^2. The Pythagorean Identities used in trigonometry are the angle version which can be used to simplify expressions.
<em>Note: you did not add the answer options, so I am solving this question generally to solve your query, which anyways would clear your concept.</em>
Answer:
Please check the explanation.
Step-by-step explanation:
Given the equation

All we need is to find any random value of 'x' and then solve for 'y'.
For example, putting x=2




Thus, (2, 17) is one of the many ordered pairs solutions of the equation.
Similarly, putting x=3




Thus, (3, 21) is one of the many ordered pairs solutions of the equation.
19 is a prime number so you can multiply 1*19 ,
hope this helps (^....^).
Answer:
6x + 13 I very much belive