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The area of the triangle formed by the image and two coordinate axes of the linear function y = 2x + 3 is ()
First, find the intersection (- 3 / 2,0) of x-axis and the intersection (0,3) of y-axis for the image of a function y = 2x + 3,
The area of triangle is 3 / 2 × 3 × 1 / 2 = 9 / 4
The line L is parallel to the line y = 2x + 1, and the area of the triangle is 4
The line L is parallel to the line y = 2x + 1, and the area of the triangle is 4
y=2x+a
0.5*|a|*|-0.5a|=4
A = 4 or a = - 4
The analytic expression of line l y = 2X-4 or y = 2x + 4
Draw the following graph: (1) y = 4x (2) y = 4x + 1 (3) y = - 4x + 1 (4) y = - 4x-1
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