The Chang family is on their way home from a cross-country road trip. During the trip, the function D(t) = 2,280 – 60t can be used to represent their distance, in miles, from home after t hours of driving. What is the value of D(15)?

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !