Please answer the exercises with clear explanations.

EXERCISES Practice Write an equation in slope intercept form for each line described. 11. slope = 5, y-intercept = -2 12. slope = 8, passes through (-7, 5) 13. slope =- 3 J-intercept = 0 14. slope = -12, y-intercept = 15. passes through A(4, 5), slope = 6 16. no slope and passes through (12, -9) 17. passes through A(1, 5) and B(-8, 9) 18. x-intercept = -8, y-intercept = 5 19. passes through A(8, 1) and B(-3, 1) 20. vertical and passes through (-4, -2) 21. the y-axis 22. slope = 0.25, x-intercept = 24 23. Line / passes through A(-2, -4) and has a slope of -?. What is the standard form of the equation for line (? 24. Line m passes through C(-2, 0) and D(1, -3). Write the equation of line m in standard form. Applications 25. Sports Skiers, hikers, and climbers often experience altitude sickness as they and Problem reach elevations of 8000 feet and more. A good rule of thumb for the amount of Solving time that it takes to become acclimated to high elevations is 2 weeks for the first 7000 feet. After that, it will take 1 week more for each additional 2000 feet of altitude. a. Write an equation for the time / to acclimate to an altitude of / feet. b. Mt. Whitney in California is the highest peak in the contiguous 48 states. It is located in Eastern Sierra Nevada, on the border between Sequoia National Park and Inyo National Forest. About how many weeks would it take a person to acclimate to Mt. Whitney's elevation of 14,494 feet? 26. Critical Thinking Write an expression for the slope of a line whose equation is Ax + By + C =0