The graph below plots a function f(x): 220
200
190
101
140
120
100
80
40
20
+
0.5 1 1.5 2 2.5 3 3.5 4
If x represents time, the average rate of change of the function f(x) in the first three seconds is

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.

explanation:

step-by-step explanation:

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

its line 2 i just added the rest or else it wouldn't let me answer