Question 85616
1. {{{graph( 300, 200, -10, 10, -10, 10, x^2 - 4x)}}}
2. {{{graph( 300, 200, -10, 10, -10, 10, -x + 1)}}}
3. {{{graph( 300, 200, -10, 10, -10, 10, x+1)}}}
4. {{{graph( 300, 200, -10, 10, -10, 10, 2x^2)}}}