The expression of positive scale function of image passing through (1,2) is______ .
Let the expression of the positive scale function be y = KX ∵ its image passes through (1,2) ∵ 2 = k ∵ and the expression of the positive scale function be y = 2x
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- 1. How to translate the image of the linear function y = 2x + 4 from the image of the positive scale function y = 2x?
- 2. When the image of positive scale function y = - 2x is shifted 2 units to the right, the analytical expression of the straight line is______ .
- 3. If the image of the function y = sin2x is shifted to the right by φ (φ > 0) units, and the obtained image is symmetric with respect to x = π 6, then the minimum value of φ is () A. 5 π 12b. 11 π 6C. 11 π 12D. None of the above is true
- 4. If the function y = 2Sin (3x-4 π) image is shifted to the left by 4 π units, the analytic expression of the function is
- 5. For the image of the function y = 2Sin (3x Pai / 3), the analytic expression of the function obtained by moving Pai / 9 to the left and then up one unit is?
- 6. If the image of the function y = 1 + 2Sin (π / 4-3x) is shifted down one unit, the function can be obtained_____ The function can be obtained by making the image symmetrical about X axis______ Then the ordinate of each point on the image is changed to 1 / 2 of the original, the abscissa is changed to 3 times of the original, and the function is obtained_____ Then the function can be obtained by translating the image to the left by π / 4 units______ Image of
- 7. The image of the function 2Sin (2x + π / 3) + 1 is shifted to the left by π / 6 units, and then to the quotient by 3 units. The analytic expression is
- 8. Shift the image of function y = 1 / 2Sin (2x - π / 4) to the left____ The function y = 1 / 2Sin (2x) is obtained by using two units Is it π / 4 or π / 8?
- 9. Given that the line y = KX + B passes through the point (52,0), and the area of the triangle enclosed by the coordinate axis is 254, the analytical formula of the line is obtained
- 10. It is known that the line y = KX + B passes through the point (2.5,0), and the area of the triangle surrounded by the coordinate axis is 6.25. The analytical formula of this line is obtained
- 11. The image of a positive scale function passes through a (- 2, 3), and the expression of the function is written
- 12. The image of a positive scale function passes through a (- 2, 3), and the expression of the function is written
- 13. The functional expression of the image obtained by translating the image of y = 1 / X one unit to the right is
- 14. The image of a first-order function is shifted 2 units to the right to get a straight line y = - 2x, and through the point a (- 4,2), the expression of the function is obtained, and the area of the figure enclosed by the function image and the coordinate axis is obtained
- 15. Find the linear function expression (drawing solution) after translating the image of function y = - 2x + 1 to the right by 2 unit lengths It doesn't have to be a drawing step
- 16. The image of positive scale function y = - 2x is shifted one unit length to the left, and the analytic expression of the function is?
- 17. Given that Y-3 is in positive proportion to X and x = 2, y = 7 shifts the function image so that it passes through the point (2, - 1) and finds the analytic expression of the translated line
- 18. Given that y 3 is in direct proportion to x, and x = 1, y = 5, translate the image of the function so that it passes (2, - 1), and find the analytic expression of the line after translation
- 19. If the image of a positive scale function passes through a point (- 1,2), then the image must pass through a point () A. (1,2)B. (-1,-2)C. (2,-1)D. (1,-2)
- 20. After the image translation vector (- π / 6 1 / 2) of the function y = cos 2x, the function y =? A 1/2+cos(2x- π/3) B 1/2+cos(2x+π/3) c cos(2x+π/3)-1/2 D cos(2x+π/6)+1/2