Over which interval does f(t)f(t)f, left parenthesis, t, right parenthesis have positive average rate of change? Choose 1 Choose 1 (Choice A) A [-5,-1][−5,−1]open bracket, minus, 5, comma, minus, 1, close bracket (Choice B) B [-8,-2][−8,−2]open bracket, minus, 8, comma, minus, 2, close bracket (Choice C) C [-9,-8][−9,−8]open bracket, minus, 9, comma, minus, 8, close bracket (Choice D) D [2,4][2,4]open bracket, 2, comma, 4, close bracket

what is

step-by-step explanation:

i think the answer is true

step-by-step explanation:

m=-16

step-by-step explanation:

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.