Complete the equation of the line through (-8,-2)(−8,−2)left parenthesis, minus, 8, comma, minus, 2, right parenthesis and (-4,6)(−4,6)left parenthesis, minus, 4, comma, 6, right parenthesis. Use exact numbers.

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.

Cherie works in retail and her weekly salary includes commission for the amount she sells. the equation s=400+0.15c models the relation between her weekly salary, s, in dollars and the amount of her sales, c, in dollars. interpret the slope of the equation.