The constant term of the unary quadratic equation 3x2+5x-2=0 is -2.
The coefficient of the primary term of the unary quadratic equation 3x2+4x-2=0 is 4 and the constant term is -2.
The quadratic term coefficient of the unary quadratic equation 3x2-5x-7=0 is 3 and the constant term is -7.
The equation 3x(x- 1)-2=-4x is transformed into the general formula 3x2-x-2=0.
2. Knowledge points: Cartesian coordinate system and the position of points.
In the cartesian coordinate system, the point (3,0) is on the y axis.
In rectangular coordinate system, the abscissa of any point on the X axis is 0.
In rectangular coordinate system, point A (1, 1) is in the first quadrant.
In the angular coordinate system, point A (-2,3) is in the fourth quadrant.
In rectangular coordinate system, the point (-2, 1) is in the second quadrant.
3. Knowledge point: Find the function value from the values of known independent variables.
When x=2, the value of function y= is 1.
When x=3, the value of function y= is 1.
When x=- 1, the value of function y= is 1.
4. Knowledge points: the concept and nature of basic functions.
The function y=-8x is a linear function.
Function y=4x+ 1 proportional function.
Function is an inverse proportional function.
The opening of parabola y=-3(x-2)2-5 is downward.
The symmetry axis of parabola y=4(x-3)2- 10 is x=3.
The vertex coordinate of parabola is (1, 2).
The images of the inverse proportional function are in the first and third quadrants.