M104

Rational Functions And Expressions

MathematicsGrade 12Grade 11Grade 10Grade 9

Lyrics

Rational Functions and Expressions

I need to know what’s rational

Polynomials make math seem magical

All of these fractions ohhhhhh

I want to learn because I just don’t know

I need to know what’s rational

Polynomials make math seem magical

All of these fractions ohhhhhh

I want to learn because I just don’t know

Don’t worry, let me explain

A rational expression is real easy for your brain

First you got to find the domain

Honestly it’s simple and plain

Really all you got to do here bro

Is set your denominator equal to zero

Yeah now solve for x

Now you got the domain that’s all what’s next

Well now you got to find root

Listen up closely im finna tell the truth

See, what you gotta do here bro

Is set your numerator equal to zero

Just like last time solve for x

Now you got cha roots that’s all what’s next

Ohhh, I think that’s all bro

Now you know what’s rational

I need to know what’s rational

Polynomials make math seem magical

All of these fractions ohhhhhh

I want to learn because I just don’t know

I need to know what’s rational

Polynomials make math seem magical

All of these fractions ohhhhhh

I want to learn because I just don’t know

CCSS.MATH.CONTENT.HSA.REI.A.2 — Solve simple rational and radical equations in one variable, and give examples showing how extraneous solutions may arise.
CCSS.MATH.CONTENT.HSA.APR.D.6 — Rewrite simple rational expressions in different forms; write a(x)/b(x) in the form q(x) + r(x)/b(x), where a(x), b(x), q(x), and r(x) are polynomials with the degree of r(x) less than the degree of b(x), using inspection, long division, or, for the more complicated examples, a computer algebra system.
CCSS.MATH.CONTENT.HSA.APR.D.7 — (+) Understand that rational expressions form a system analogous to the rational numbers, closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply, and divide rational expressions.