Abike rider travels 58 miles 5 hours.

(a) what is the unit rate that describes the bike ride’s speed in miles per hour? (p. 242)
(b) how far will the bike rider travel in 3 hours at the same rate? (p. 250, example 4)

A. 58/5= 11.6 mph

b. it take 1 hr to ride 11.6 miles
so in 3hrs he would travel 3 x 11.6=34.8mi

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!