The image of a positive scale function passes through a point (2, - 3). Its expression is () A. y＝−32xB. y＝23xC. y＝32xD. y＝−23x | Math enthusiast | Mathematical art

The image of a positive scale function passes through a point (2, - 3). Its expression is () A. y＝−32xB. y＝23xC. y＝32xD. y＝−23x

Let the analytic expression of the function be y = KX. According to the meaning of the problem, we get 2K = - 3. The solution is k = - 32. So the analytic expression of the function is y = - 32x. So we choose a

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1. The image of a positive scale function passes through point a (negative 2,3) to write the expression of the function Let the image of a positive scale function pass through point a (negative 2,3) and write the expression of the function. Let the analytic expression of the positive scale function be y = KX Substituting the point (- 2,3) into the analytic expression, we get 3 = - 2K, and the solution is k = - (3 / 2) So the analytic expression of the function is y = - (3 / 2) X
2. The image of positive scale function passes through points P (3, - 2) and Q (m, - M + 2) (1) Write the analytic expression of positive proportion function (2) Write the value of M (3) Draw an image of this function
3. We know that y is a positive proportional function of X, and when x = 3, y = - 6; find its analytic formula; if point a (m, M + 3) is a point on its image, find the value of M
4. What is the difference between positive proportional function and linear function?
5. The difference between linear function and positive proportion function In terms of fractions and fractions, it is known that the positive proportion function is y = KX and the primary function is y = KX + B. why is s = 10 / y not a primary function or a positive proportion function, while y = 1 / 2ah seems to have no B, but it is both a positive proportion function and a primary function? What is y = 1 / 2A?
6. What is the difference between linear function and positive proportion function? What are the similarities?
7. What is the difference between linear function and positive proportion function?
8. Second grade positive proportion function online, etc If Y-2 is positively proportional to x + 2 and x = 0, y = 6. Write the functional relationship between Y and X Is it y = 2x + 6?
9. On the positive proportion function of grade two As shown in the figure, the line L is parallel to the Y axis and intersects with the image of the function y = x.x axis and the function y = KX at points a, B and C respectively. If the triangle BOC = 2 and the triangle AOB, then the value of K is?
10. Positive proportion function in grade two of junior high school (just learned today) If the function y = (k-1) x 3K + 5 is a positive proportional function, the value of K is obtained Note: (k-1) x (not a multiplication sign) the degree of X is 3K + 5
11. The image of the positive scale function passes through the point a (- 2,1 / 2) B (6, m), and the analytic expression of the function is obtained
12. Given that the image of a positive scale function passes through a point (- 1,2), (1) find the analytic expression of the positive scale function; (2) is the point (2, - 5) on the image of the function?
13. If the image of positive scale function is known to pass through points (3,2), (a, 6), the value of a is obtained It's due tomorrow,
14. If the point (3,6) is on the image of a positive scale function, the expression of the positive scale function is
15. As shown in Figure 1, it is known that the images of positive scale function and inverse scale function all pass through the point m (- 2, - 1), and P (- 1. - 2) is a point on the hyperbola, and Q is the coordinate plane
16. Find the image passing through point (2, - 1) of positive scale function in expression (1) (2) The image of a linear function passes through points (0,4 / 3) and (1 / 2,3) (3) It is known that the ordinate of the intersection of the image and Y-axis of the linear function y = KX + B is - 5, and when x = 1 and y = 2, the expression of the function is?
17. If y is a positive scale function of X and the image passes through points (1,1), then the expression of the positive scale function is?
18. What is the degree of the acute angle between the image of positive scale function y = x and X axis______ ．
19. If the positive scale function y of the image passing through point a (- 2,6) is KX, then K is K
20. How to draw an image (a straight line) with positive scale function y = 3x It's best to state its steps