Calculate the average rate of change of the function f(x) over the interval -[4,-1] using the formula. the value of f(-1) is. value of f(-4) is. the average rate of change of f(x) over the interval [-4,-1] is graph with question: y intercept: 5 x intercept: -2.5 slope: 2 a: [f(-4)-f(-1)]/[-5] [f(-1)-f(-4)]/[-5] [f(-1)-f(-4)]/[3] [f(-4)-f(-1)]/[3] b. 3 2 -1 c. -4 -3 4 d. -2 -1.5 2 4

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.