The table shows the speeds $y$ (in miles per hour) of a car after $x$ seconds of braking. Write an equation of the line that passes through the points in the table. $x$ $0$ $1$ $2$ $3$
$y$ $70$ $60$ $50$ $40$
$y=$
Question 2
Interpret the slope and the $y$ -intercept.
The slope of
represents the decrease in car speed, in miles per hour, each second after braking.