35-39

ERROR ANA correct the 35. GRAPHING FROM A VERBAL DESCRIPTION A linear function r models the growth of your right index fingernail. The length of the fingernail increases 0. 7 millimeter every week. Graph r when r (0) = 12. Identity the slope and interpret the y-intercept of the graph. 36. GRAPHING FROM A VERBAL DESCRIPTION A linear function m models the amount of milk sold by a farm per month. The amount decreases 500 gallons for every $1 increase in price. Graph m when m(0) = 3000. Identify the slope and interpret the - and y-intercepts of the graph. 41. 37. MODELING WITH MATHEMATICS The function shown models the depth d (in inches) of snow on the ground during the first 9 hours of a snowstorm, where t is the time (in hours) after the snowstorm begins. (See Example 6.) 42. MATH equat d(t ) = 31+6 a. Graph the function and identify its domain and range. b. Interpret the slope and the d-intercept of the graph. a. W 38. MODELING WITH MATHEMATICS The function E c(x) = 0.5x + 70 represents the cost c (in dollars) of renting a truck from a moving company, where x is b. W the number of miles you drive the truck. P a. Graph the function and identify its domain and range. 43. MATI the r b. Interpret the slope and the c-intercept of the graph. x of recta 39. COMPARING FUNCTIONS A linear function models first the cost of renting a truck from a moving company. The table shows the cost y (in dollars) when you drive a. C the truck x miles. Graph the function and compare the slope and the y-intercept of the graph with the slope and the c-intercept of the graph in Exercise 38. Miles, X Cost b. I (dollars), y 0 40 50 80 100 120