1,744 Answered Questions for the topic Functions

10/07/19

Inequalities(Double equations)
(x+1)(x-2)---------------- ≥0x^2+7x-8Please explain this question.Part of the answer is -1≤x≤1. But how to get the range of it? I can't figure it out. Thank you.
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09/29/19

Inverse functions
f(x) is transformed to x=f(-y), is it equal to (-y,x) or (y,-x)?
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Functions Algebra 2

09/29/19

Use f(x) = 3x − 5 and g(x) = 2 − x2 to evaluate the expression. (a) (f ∘ f)(−1)

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Functions Quadratic Equation

09/23/19

Detemine the equation in standard form for the quadratic equation
x-intercepts -2 (+or-) square root of 5, containing the point (-4, 5)
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Functions Algebra

09/19/19

Find the average rate of change for f(t)=5t^2+8 over the interval [2,2+h].

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Functions Algebra 2 Algebra

09/18/19

Example of a one-to-one function with required domain and range
I missed a question on my last quiz and I don't get why."Draw the graph of a function which is one-to-one and has domain [-5,4) and range [-8,5]."I didn't see how that is possible so I said "no... more
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Functions Algebra 2

09/17/19

Make an input-output table for the function y = 3x + 2 with 0, 1, 2, and 3 as the domain.
And how did you do it specifically?
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Functions Algebra 2

09/16/19

If you make an investment of ​$4,500 and the investment earns a continuous annual interest rate of 4.6​%, in how much many years will it be worth ​$7000​?
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09/14/19

Does the following statement make sense?
My Pre-Cal professor asked my class if the following statement made sense mathematically:"My body temperature is a function of my age."We were assigned to explain why or why not this statement made... more
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Functions Algebra 2

09/14/19

How do i find (fog)(x) = 0
How do i find (fog)(x) = 0 given that f(x) = 2x^2 - 18 and g(x) = x + 2. I came up with the solution of square root of five. But apperently this answer is incorrect.
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Functions Math Algebra 1 Calculus

09/11/19

Find 2 functions f and g such that h(x)=[fog](x).

Neither function may be the identity function f(x)=x.h(x)=√(4x+2) +7Can someone give me a step by step explanation because it is kind of confusing and complex to understand, thank you
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Functions Algebra 1

09/08/19

find functions f and g so that h(x)=(fog)(x). Neither funtion maybe the identity function f(x)=x
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09/06/19

i need help with this function
consider the function:y={1 if x is rational 0 if x is irrational ( both are inside bracket but couldnt type it like that)Answer one of the following questions:(1) Is this a function?(2) What... more
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Functions Calculus

09/05/19

How can I express the area (A) of an equilateral triangle as a function of its side (X)?
Although I have the solution to this problem, I'm completely unsure of how to reach that solution. The illustration displays an equilateral triangle (although split into two triangles) with a... more
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Functions Transformations

09/03/19

write an equation for the function whose graph fits the given description.

The graph f(x)=x^2 is shifted 8 units to the left and 5 units downward.
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Functions

08/29/19

How do I calculate the indicated function value of f(7) ?
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08/29/19

please help me with this

Suppose that the revenue​ R, in​ dollars, from selling x cell​ phones, in​ hundreds, is R(x)=-1.2x^2+246x The cost​ C, in​ dollars, from selling x cell​ phones, in​ hundreds, C(x)-0.07x^3... more
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08/29/19

please help me with this word problem
Express the gross salary G of a person who earns $24 per hour as a function of the number x of hours worked.
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Functions Math Calculus Algebra

08/27/19

Expressing P as a function of Q
Q as a function of P:1) Q = 25 - P2) Q = 12 - 3P3) 6Q = 14 - 2PI need help expressing those ^ above as P as a function of Q
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Functions Math Algebra 2 Algebra

08/25/19

Fuction Formula problem
There is this one part of a question I have gotten stuck on where I figured out that the formula was P=13-J/50 and the last part says, "At what price will there be 7.97 thousand cans sold... more
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Functions Math Algebra 2 Algebra

08/24/19

Math Formula Functions question help
For a manufacturing company with w workers working h hours per day and producing a total of I items, labor productivity P=P(w,h,l) is measured by the function(P=I/wh) Items per worker hourSuppose a... more
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Functions Algebra 1 Units

08/22/19

Algebra 1 , i do not know how to do this, or go about it, im so confused can you please help me!!
Given the function   Write the new function after a translation of 6 units RIGHT.
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Functions Algebra 2

08/22/19

HOW TO FORM FUNCTION THAT DECREASES THEN REMAIN CONSTANT.

I want to form a price function, so there is x(the unit of products) and the y(the price of each unit). As x increases, y decreases, but only until x=10, because after x=10, the y will remain... more
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Functions Precalculus

08/22/19

f ( x) = 5x −1 ; Find f (∑) − f (Ω)
How would I go about solving this problem?
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Functions Sat Math Algebra

08/21/19

SAT Math 2 -- Question involving Functions

Please help me understand the following question-- If f(2x) = x+5 and f(g(6)) = 13, then 2 * (g(6)) equals A) 6 B) 16 C) 32 D) 36 E) 64
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