High school compulsory 1 mathematical quadratic function after-school exercises to find the answer 2

1.y=(x+a) is the unit translation from y=x to the left.

2.y=f(x) translates one unit to the left to form y=f(x+a), and then translates b units to form y=f(x+a)+b,

3.a determines the opening direction of the image, b/a determines the symmetry axis of the image, and abc*** determines the function value, including the position of the extreme point on the image.

4. y = (x+3)/(x-1) =1+4/(x-1) The image is vertically enlarged by 4 times from y =1(x-1), and then shifted upward by 60 times.

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The four basics refer to the basic knowledge, skills, thoughts and activities of mathematics. Th

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