First, multiple choice questions
1. Among the following functions, the one in which y is a linear function of x is () ① y = x-6; ②y =-3x– 1； ③y =-0.6x； ④y=7-x
a、①②③ B、①③④ C、①②③④ D、②③④
2. The image with linear function y= -3x+2 passes through the () th quadrant.
One, one, two, three; B, one, two, four; C, one, three, four; Two, three, four.
3. If the image of a linear function y=kx+b passes through points (-2,-1) and (1, 2), then the image of this function does not pass ().
A, the first quadrant; B, the second quadrant; C, the third quadrant; D, the fourth quadrant
4, the following statement is correct ()
A, the proportional function is a linear function; B, linear function is proportional function;
C. The proportional function is not a linear function; ; D is not a proportional function or a linear function.
5. When AB > 0, AC < 0 and the straight line ax+by+c=0, the quadrant that does not pass is ().
A, the first quadrant; B, the second quadrant; C, the third quadrant; D, the fourth quadrant
6. If the images of linear functions y=mx+ 1 and y = NX-2 intersect at a point on the x axis, then m: n = (),
a、 1:2； b 、- 1:2； c、2: 1； d 、-2: 1
7. If the image of the linear function y = kx+(k- 1) passes through the first, third and fourth quadrants, the value range of k is ().
a、k > 0； b、k < 0； c、0 < k < 1； d、k> 1
8. Images with linear functions y=3x+p and y=x+q both pass through point A (-2,0) and intersect with Y axis at point B and point C respectively, then the area of △ABC is () a and 2; b、4； c、6； d、8
9. If the straight line Y = KX+B passes through the first, second and fourth quadrants, then k and b should satisfy ().
a、k & gt0，b & lt0; b、k & gt0，b & gt0; c、k & lt0，b & lt0; d、k & lt0，b & gt0.
10, the coordinate where the functions y = 4x-2 and y =-4x-2 intersect is ().
a 、(-2，0)； b 、( 0，-2)； c 、( 0，2)； d 、( 2，0)
fill (up) a vacancy
1 1, three representations of functions: _ _ _ _ _ _, and the general step of drawing a function image by drawing points is _ _ _ _.
12, when m = _ _ _ _ _ _ the function y=(m+3)x2m,+1+4x-5(x≠0) is a linear function.
13. if b in the linear function y=kx+b decreases by one unit, its image will move by one unit to _ _ _ _.
14, point M(-2, k) is on a straight line, y=2x+ 1, and the distance from point m to the x axis is d=_____.
15. Make an image of the function y= 1-x and answer the following questions: With the increase of x value, the change of y value is _ _; The coordinate of the intersection of the image and Y is _ _, and the coordinate of the intersection of the image and X axis is _ _; When x_____, y≥0.
16, a beam of light starts from point a (0, 1) on the y axis and passes through point b >