A figure formed by two straight lines drawn from a point is called an angle______ (judge right or wrong)

According to the definition of angle, a figure composed of two rays drawn from a point is called an angle

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1. Two from one point______ The figure formed is called angle
2. The graph formed by the intersection of two straight lines is called an angle. The graph formed by the line segments of two common line segments is called an angle In the following statements, the correct one is () A. The figure formed by the intersection of two straight lines is called angle B. The figure formed by two line segments with common endpoints is called angle C. A pattern of two rays is called an angle D. The pattern of two rays from the same point is called angle
3. The figure formed by two lines leading out from one point is called angle
4. Given the graph of a function, write its analytic expression
5. 1. It is known that the image of a linear function passes through two points a (- 2, - 3) and B (1,3). (1) find the analytic expression of the linear function; (2) try to judge the point 1. It is known that the image of a linear function passes through two points a (- 2, - 3) and B (1,3) (1) Find the analytic expression of this first-order function; (2) Try to judge whether the point P (- 1,1) is on the graph of this linear function 2. Known: function y = (2m + 1) x + (M-3) (1) If the image of this function passes through the origin, find the value of M (2) If the image of this function does not pass through the second quadrant, find the value range of M
6. If the image of a function of degree is known, the analytic expression of the function can be obtained through points a (0,3) and B (2, - 3) (1)
7. If the image of a given function passes through points a (- 1,3) and B (2, - 3), (1) find the analytic formula of a function, (2) judge point C (- 2,5) Why substitute - 3 = 2K + B instead of 3 = - K + B? For example, the following solution 1. Let the analytic expression of a function be y = KX + B, Because the function image passes through the points a (- 1,3) and B (2, - 3), the value of the two coordinate points is substituted into the analytic formula of the function to obtain k = - 2, B = 1, that is, the analytic formula is y = - 2x + 1
8. It is known that the image of a function passes through two points (3,5) and (- 4, - 9), and (1) the analytic expression of the function is obtained. (2) if the point (a, 2) is on the function image,
9. If the image of the first-order function is known to pass through the points (- 2,7), (0,3), find the analytic formula of the function, and judge whether the point a (0.5,2) is on the line
10. Given that the image of a function of degree passes through the point A. (0,8) B (- 4,0), find the analytic expression of the function
11. The graph composed of two intersecting lines is called angle B. the graph composed of two line segments with a common endpoint is called angle C. The figure formed by a ray rotating from one position to another around an end point is called an angle D. Angles are two rays from one point [please explain briefly]
12. A figure consisting of two circles, two triangles, and two straight lines Thank you. If it's not enough, I'm offering a reward
13. If two figures are symmetrical about a line, they must be on both sides of the line. Why is it wrong
14. If the image of the line y = 3x + P intersects the X axis of the line y = - 2 + Q at the same point, then the relation between P and Q is——————
15. If the image of the line y = 3x + P intersects the X axis of the line y = - 2x + Q at the same point, the relation between P and Q is obtained P = q-5x (incorrect) Ask for a more accurate answer
16. Given that the point P is a moving point on the right part of the image of quadratic function y = - x ^ 2 + 3x, the line y = - 2x + B (b > 0) intersects the X axis and Y axis at two points CD respectively, If △ PCD with CD as right angle side is similar to OCD of triangle, the coordinates of P can be obtained
17. If the intersection of the line y = 3x-2 and y = - 2x + 3, the line y = 2x + K and the line y = - x + 4 intersect the X axis at the same point, then K=
18. As shown in the figure: the straight lines a and B are perpendicular to the straight line L, and ∠ 1 = (2x) °, ∠ 2 = (3x + y) °, ∠ 3 = (2 & nbsp; Y-X) °, then the degree of ∠ 1 is______ ．
19. The following functions are known: 1. Y = 2x-1; 2. Y = - x; 3. Y = 4x; 4. Y = 2 / x, where are the positive proportion functions?
20. The function y = - 1 / 2 (x-1) ² + 2, when x takes what value, y increases with the increase of X? When x takes what value, y decreases with the increase of X? What I learned in the first semester of junior three, if there is a calculation process, it's better to list it When x takes what value, Y > 0, y < 0?