Gwen, Tristan, and Keith like to work out at the gym. They each have an app on their phone that estimates the calories
they burn. By the time Tristan and Keith started exercising, Gwen had already burned 100 calories. Gwen burns 10
calories every minute, Tristan burns 125 every 10 minutes, and Keith burns 300 calories every 30 minutes. Let x
represent the number of minutes since Tristan and Keith started exercising and y represent the number of app-
estimated calories burned.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

answer: he is 272195

step-by-step explanation: all you have to do is multiple 3535 and 77 and it equals 272195