Write equations for each line given the following points. Remember, you must first find the slope and then determine the y-intercept, then write out the equation in slope-intercept form. Remember if the y-intercept b is zero, then there is no need to put it there, and if the slope is 1, then you only need to write x, not 1x. 11. (-5, -2) and (-1, -6)

12. (3, 2) and (5, 7)

13. (-3, -2) and (-1, -1)

14. (4, 7) and (2, 3)

15. (-3, 2) and (3, -2)

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %