5272道题目5525 条题源记录 · 相同内容已合并
线性建模・解释与预测挑战
Caleb used juice to make popsicles.The function f(x) = -5x +30 approximates the volume, in fluid ounces, of juice Caleb had remaining after making x popsicles. Which statement is the best interpretation of the y-intercept of the graph of y = f(x) in the xy-plane in this context?
原库参考解析
线性建模・解释与预测进阶
w(t)= 300- 4t
The function w models the volume of liquid, in milliliters, in a container t seconds after it begins draining from a hole at the bottom. According to the model, what is the predicted volume, in milliliters, draining from the container each second?
原库参考解析
线性建模・解释与预测进阶
A bus is traveling at a constant speed along a straight portion of road. The equation d = 30t gives the distance d, in feet from a road marker, that the bus will be t seconds after passing the marker. How many feet from the marker will the bus be 2 seconds after passing the marker?
原库参考解析
线性建模・解释与预测进阶

The graph gives the estimated number of catalogs y, in thousands, a company sent to its customers at the end of each year, where x represents the number of years since the end of 1992, where 0 ≤ x ≤ 10.Which statement is the best interpretation of the y-intercept in this context?
原库参考解析
线性建模・解释与预测进阶
A certain apprentice has enrolled in 85 hours of training courses. The equation 10x + 15y = 85 represents this situation, where x is the number of on-site training courses and y is the number of online training courses this apprentice has enrolled in. How many more hours does each online training course take than each on-site training course?
原库参考解析
线性建模・解释与预测进阶
g(m) = -0.05m + 12.1
The given function g models the number of gallons of gasoline that remains from a full gas tank in a car after driving m miles. According to the model, about how many gallons of gasoline are used to drive each mile?
原库参考解析
线性建模・解释与预测基础
Last week, an interior designer earned a total of $1 ,258 from consulting for x hours and drawing up plans for y hours. The equation 68x + 85y = 1,258 represents this situation. Which of the following is the best interpretation of 68 in this context?
原库参考解析
线性建模・解释与预测进阶
A store sells two different-sized containers of blueberries. The store's sales of these blueberries totaled 896.86 dollars last month. The equation 4.51x + 6.07y = 896.86 represents this situation, where x is the number of smaller containers sold and y is the number of larger containers sold. According to the equation, what is the price, in dollars, of each smaller container?
原库参考解析
线性建模・解释与预测挑战
Kaylani used fabric measuring 5 yards in length to make each suit for a men's choir. The relationship between the number of suits that Kaylani made, x, and the total length of fabric that she purchased y, in yards, is represented by the equation y- 5x = 6. What is the best interpretation of 6 in this context?
原库参考解析
线性建模・解释与预测基础
The function f defined by f(t)= 14t + 9 gives the estimated length, in inches, of a vine plant t months after Tavon purchased it. Which of the following is the best interpretation of 9 in this context?
原库参考解析
线性建模・解释与预测基础
The graph shows the predicted value y, in dollars, of a certain sport utility vehicle x years after it is first purchased.

Which of the following is closest to the predicted value of the sport utility vehicle 3 years after it is first purchased?
原库参考解析
线性建模・解释与预测挑战

The graph models the number of active projects a company was working on x months after the end of November 2012, where 0 \( \le \) x \( ≤ \)6. According to the model, what is the predicted number of active projects the company was working on at the end of November 2012?
原库参考解析
