Astudy was done to investigate the relationship between outdoor temperature and the amount of fluids an outdoor athlete drinks per day. the correlating linear model is shown below, where x represents the number of degrees over 80°f, and y represents the amount of fluids drank (in liters). interpret the y-intercept. y = 3.85 + 0.55x a. an athlete drinks 7 l per day when the temperature is 80°f. b. an athlete drinks 4.4 l per day when the temperature is 80°f. c. an athlete drinks 3.85 l per day when the temperature is 80°f. d. an athlete drinks 0.55 l per day when the temperature is 80°f.

C. An athlete drinks 3.85 L per day when the temperature is 80°F

Step-by-step explanation:

Y-intercept of a linear model, equation or a straight line refers the point at which a line crosses the y-axis of a graph. It generally indicates a point on the graph where x equals 0.

For the equation y = 3.85 + 0.55x

At y-intercept, x = 0. Substitute x into the equation, we have:

y = 3.85 + 0.55 (0)

y = 3.85 + 0

y = 3.85

This implies that the value of fluid drank by an athlete at the starting temperature of 80°F (at x=0) is 3.85 L per day

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|