Find the equation of the line with slope 1 and y-intercept (0,−1).

We will build the equation in the form of y = mx + b where 'm' is the slope and 'b' is the y-intercept.

We know the slope and we know the where the line intercepts the y-axis.

The

y = 1x + -1

Because the coefficient of "1x" is just one we can simplify to the final

y = x + -1

45.36 feet per second

step-by-step explanation:

tyrone travels 30 miles in 58.2 minutes.  

1 mile = 5280 feet; this means he travels

30(5280) = 158400 feet in 58.2 minutes.

1 minute = 60 seconds; this means he travels 158400 feet in

58.2(60) = 3492 seconds.

this gives us the unit rate of

158400/3492 = 45.36 feet per second.