Current location - Training Enrollment Network - Mathematics courses - How to draw the function image of junior two mathematics? For example, y = 4x- 1
How to draw the function image of junior two mathematics? For example, y = 4x- 1
Draw a plane rectangular coordinate system first, then let x be equal to 0 and 1 respectively, and then calculate how much y is equal to. That is, when x=0, y=- 1, when x= 1, y=3, that is, the image passes through two points (0,-1, 3), which can be found in the plane rectangular coordinate system and connected by hand. Hope to adopt.