Cupcake164
Cupcake164 Cupcake164
  • 20-05-2016
  • Mathematics
contestada

Math Help


Explain when is a rational expression restricted.

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 20-05-2016
basically, domain is all real numbers that cause an not allowed
some things that aren't allowed are dividing by zero and taking the square root of a number less than zero, restrict all values that make thos things hapen

exapmle

a/b, b can not be zero

(3+x)/(4-x)
x cannot be  4 since that would be dividing by zero


another example
√(x-3)
x cannot be less than 3 because that would make a sqrt of a negative

basiccally restrictions are not allowed becasue we don't understnad what happens when we break them

Answer Link

Otras preguntas

I'm so confused#11th grade math work,If you can solve this I'll give you brainlest
Choose the FALSE statement. A. There is a gravitational force between Earth and an airplane in flight. B. There is a gravitational force between two people s
I need help with this question step by step! Please!!!
how is a good slide into a base performed?
Please help me. I am stuck
Brainliest for the best answer, please help! Find the value of x
a volleyball is full of pressurized air. the air temperature is 24.6 degrees C. the volleyballs absolute pressure is 140.75 kilopascals and it’s volume is 5.27
Hurry please help i am struggling
give an overview of the process depicted in the diagram
Unlike during the mid evil. Church leaders commission works of art during the renaissance to 1.)Teach religious lessons 2.) reward church supporters 3.) demonst