Write the equation for each of the following. 10. Start with the graph of the linear parent function. Stretch it by a factor of 2 and shift it 2 units to the right. 12. Start with the graph of quadratic parent function. Shift it 5 units down. 14. Start with the graph of the linear parent function. Shift it one unit to the left and 3 units down. 16. 18. 19 20.