The table shows the life expectancy in years for people born in certain years: construct a scatter plot of the data, then draw and assess a line that best represents the data; write an equation in slope-intercept form for the line of fit and intercept the slope and y-intercept; use the equation to make a conjecture about the life expectancy for a person born in 2020.

why do we estimate a line of best fit for a scatter plot?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

V=x^4-y^4 pick three expressions that can represent the three dimensions of the prism (each in meters)

Let us imagine that the number of automobile accidents in a certain region are related to the regional number of registered automobiles in tens of thousands (b1), alcoholic beverage sales in $10,000 (b2), and decrease in the price of gasoline in cents (b3). furthermore, imagine that the regression formula has been calculated as: y = a + b1x1 + b2x2 + b3x3 where y = the number of automobile accidents, a = 7.5, b1 = 3.5, b2 = 4.5, and b3 = 2.5 calculate the expected number of automobile accidents for a football weekend if the region has 25,000 registered vehicles, $75,000 worth of beer is sold, and a gas war causes a 10 cent drop in a gallon of gas.