1. how to draw a line ax+by=c?
2. what are the quadratic function and how many maximums and minimums it has?
3. What is the definition of a derivative?
4. What meaning does a derivative have?
5. Calculate the derivatives of the following functions:

1) y = 3x² ,

2) y = 5/x²

3) y = 3x²+ 4x + 7

1. Find the minimum or maximum of the following functions:

1) y = 5x²- 4x - 1

2) y = -3x²+ 2x + 8

Please draw graphs for the following linear functions:

y = 2x - 3

y = 2x + 3

y = -2x + 3

y = -2x - 3

2x + 3y = 6

2x - 3y = 6

-2x + 3y = 6

-2x - 3y = 6

2x + 3y = -6

2x - 3y = -6

Please draw graphs for the following quadratic functions and find solutions for the related quadratic equations if the solutions exist:

y = 2x - 8

y = 2x + 8

y = 3x + 27

y = 3x - 27