Get 5 free video unlocks on our app with code GOMOBILE. The only time a rational function has a domain of all reals is if the denominator is just 1. The equivalent of three cubed over 3 -1 is three divided by 4. Feedback from students. Anything in between -inf Enjoy live Q&A or pic answer. I don't have a good understanding of how exactly you find the domain, and what "all real numbers" means. What does the quotient indicate. Which expression has a positive quotient? The only time when you should not characterize a number as a real number is when it has an imaginary number, i. But is this really a mathematically correct term? If x was just -1, what if you got an answer of 0? Ask a live tutor for help now. Any real number squared will create a positive value. I can find the results by dividing them by 3. Real numbers are any and all numbers on a number line. Assume the denominator = 12. There is a negative 27. Which expression is equivalent to the given expression? Or in other words, it is a fraction", thereby implying that a ratio and fraction are the same. I didn't see any expressions accepted. Simplified ratios can also fit this definition. Unlimited access to all gallery answers. Which expression has a positive quotient familial. Any fraction where the numerator and denominator are integers fits this definition. That positive value plus 4 creates an even larger positive value. Domain means that you are trying to find all possible values of x. Domain's are usually written in this format: {xeR} where xeR means that for every real number, x is a solution. Now let's find the value of the expression at. So for the denominator in that fraction, can I use the method "the different of 2 squares" to factor it out to (x+2) (x-2) and solve for x from there? Or in other words, it is a fraction whose numerator and denominator are polynomials. Then your denominator would be 0 and you can't have a denominator of 0. Long division is one method to divide positive numbers. SOLVED: 'Which expression has a positive quotient? Which expression has a positive quotient? 0 3 0 1 3 O 4 D Makhiaet. If a constant is a polynomial, is 1/2 a rational expression? Thanks to Hecretary Bird for his correction. Over 3 -4 is over 94. Ab Padhai karo bina ads ke. What is the domain of? The denominator is: x^2+4. The product of three negative numbers. Rational expressions depend on the denominator for domain. Rational expressions and undefined values. If you answer Cannot Be Determined, give numerical examples to show how the problem could be either positive or negative. Let's find the zeros of the denominator and then restrict these values: So we write that the domain is all real numbers except and, or simply. Why is number 5, all real numbers shouldn't it be +/- 2 since x^2=+4, factors out to (x+2)(x-2)? However, I have learned from some teachers that a ratio is not to be confused with a fraction. You need to enable JavaScript to run this app. Provide step-by-step explanations. Decide whether the expression described is Positive, Negative, or Cannot Be Determined. If you answer Cannot Be Determined, give numerical examples to show how the problem could be either positive or negative. The product of three negative numbers. In problem # 3, the denominator is x(x+1). Check the full answer on App Gauthmath. Decide whether the expression described is Positive, Negative, or Cannot Be Determined. You changed it into x^2-4. Example: Finding the domain of.
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