For which intervals below is the average rate of change less than or equal to zero?

interval
a -13 ≤ x ≤ -10
b -5 ≤ x ≤ 0
c -10 ≤ x ≤ -2
intervals a and b only
interval b and c only
intervals a and c only
intervals a, b and, c

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94

step-by-step explanation:

graph using a few selected

x         y

-1       15

0         6

1         2.4

2       0.96