Free consultation for quick registration of the senior high school entrance examination: /xl/ Hunting Examination Network In order to better prepare for the senior high school entrance examination mathematics, I have compiled the "Arrangement and Induction of Mathematical Formulas for Adult Senior High School Entrance Examination in Shanghai", hoping to help you. I wish everyone a successful login and read the details of the article together! Math formula arrangement of Shanghai adult college entrance examination senior high school.

Straight line (undefined) A straight line extends infinitely in two directions, and it has no points.

The part of a ray near a point on a straight line. A ray has only one endpoint.

The part between two points on a straight line. It has two endpoints.

If two straight lines intersect at right angles, they are said to be perpendicular to each other. One of them is called the perpendicular of the other, and their intersection is called the vertical foot.

If two straight lines do not intersect at right angles, one of them is called the diagonal of the other.

The distance from a point to a straight line is the length from a point outside the straight line to the vertical section of the straight line, which is called the distance from a point to a straight line.

The formula of the distance between two points on the plane: two points P 1 (x 1, y 1) and P2 (x2, y2) are known, and the distance is | p1p2 | = √ [(x1-x2) 2+.

The midpoint formula of line segment: given the points P 1 (X 1, Y 1) and P2 (X2, Y2), the coordinate of the midpoint m of line segment P 1P2 is (x, y), then: x = (x1+.

The definition of the slope of a straight line is k=tanα(α is the inclination angle), and it is known that the slope k = (y2-y 1) that can be obtained from two points (point A (x 1) and point B (x2, y2) is arbitrary on the straight line.

Several forms of > > > linear equation;

Point skew: y-y0=k(x-x0), known slope k and coordinates of a point (x0, y0).

Oblique formula: y=kx+b, known slope k and y-axis intercept b.

Two-point formula: (y-Y 1)/(y2-y1) = (x-x1)/(x2-x1), two-point coordinate A (X 1, y/kloc-.

Interception formula: x/a+y/b= 1, which is called X-axis intercept formula A and Y-axis intercept formula B.

General formula: Ax+By+C=0.

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