Which is the best measure of center to summarize the reading times? Range. The reason: It is the difference between the high and low value.

Median. The reason: It is less influenced by the one very low value.

Mean. The reason: It takes into account all the values.

Mode. The reason: It is the time most people spent reading.

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)

i believe the answer is 323 ft

step-by-step explanation: