The unit price of apple per kilogram is 2.5 yuan. Please write down the analytic formula and domain of the function between the total price of apple and the weight x kilogram Just taught me how to learn function. Thank you
y=2.5x
X > 0 [the weight purchased must be positive]
RELATED INFORMATIONS
- 1. Xiao Gang bought an exercise book with 3 yuan. Given that each book costs 0.25 yuan, he wrote out the functional relationship between the number of books X and the remaining money y, and made the function image
- 2. The unit price of exercise books is 0.6 yuan. The relationship between the quantity x (yuan) of exercise books and the total price y (yuan) (about function)
- 3. Let f (x) have a third derivative. When x tends to x0, f (x) is the second order infinitesimal of x-x0. What are the characteristics of Taylor expansion of F (x) at x0? In addition, find out what Lim f (x) / (x-x0) ^ 2 is equal to when x tends to x0
- 4. Why is the limit of infinitesimal not negative and 0?
- 5. Why is it that when n tends to infinity, the n-th sine divided by n-th one equals 1? Is the infinitesimal divided by the infinitesimal equal to one?
- 6. How to find LIM (x tends to 0 +) LNX / 2x?
- 7. Finding limit limx-0 sin3x / sin5x
- 8. Want to know how to prove the product of finite infinitesimal or infinitesimal
- 9. Substitution of infinitesimal factors of higher number equivalence How do ^ 2 + (SiNx) ~ (sin2) / (SiNx) ~ (SiNx) ~ (sin2) ~ (SiNx) ~ (SiNx) ~ (SiNx) ~ (sin2) ~ (SiNx) ~ (SiNx) ~ (SiNx) ~ (SiNx) ~ (SiNx) ~ (SiNx) ~ (SiNx) ~ (SiNx) ~
- 10. If the solution set of inequality ax ^ 2-6x + A ^ 2 about X less than 0 is (1, m), then what is m?
- 11. Give m exercise books to n students, if each student has 3 exercise books, then the remaining 80; if each student has 5 exercise books, then the last student has less than 5 exercise books, and the value of n is --- 41 or 42 The result is n > 40, why 41 or 42 The formula is as follows: from the meaning of the title, 3n+80=m m-5(n-1)
- 12. The problem of continuity and differentiability of binary functions 1. F (x, y) - f (0,0) + 2x-y = O (ρ), (when (x, y) → (0,0)), we can get that f (x, y) is differentiable at point (0,0). Why? How? 2. LIM (x, y) → (0,0) (f (x, y) - f (0,0) + 2x-y) = 0 can get f (x, y) continuous at point (0,0). Why? How?
- 13. Proving continuity of binary function by differentiability How to prove Just one point is enough
- 14. When the value of independent variable x is, the value of function y = 3x-15 is less than 0? When the value of independent variable x is, the value of function y = 2X-4 is greater than 0=
- 15. Given the function y = f (2x-1), ask whether the independent variable is x or 2x-1? Given the domain of y = f (2x-1), how to find the domain of F (x)? Given the domain of y = f (x), how to find the domain of F (2x-1)?
- 16. When the value of independent variable x satisfies what conditions, the value of function y = 3 / 2x + 6 satisfies the following conditions. Y = 0 y < 0 Y > 0 y < 2 When the value of independent variable x satisfies what conditions, the value of function y = 3 / 2x + 6 satisfies the following conditions y=0 y<0 y>0 y<2
- 17. How to make multiple judgments for a function formula in electronic form Fill in the corresponding number in A1 and B1 to get C1, and the number range of C1 should conform to a value shown in D1. (the formula of C1 has been filled in) ten
- 18. How can you think of using the definition of infinity and infinitesimal when you see the question I asked
- 19. Is limit equal to 0 equal to infinitesimal
- 20. Infinitesimal in limit problems of higher numbers In the limit of higher numbers, the definition of infinitesimal is f (x) when x approaches to x0 or when the limit is zero, then f (x) is called the infinitesimal of X in this process. However, in the related proof later, it seems that the definition of infinitesimal when x approaches to x0 appears again. By definition, isn't infinitesimal only a function? Why can it be replaced by a specific symbol (constant?)? Thank you~