QUESTION 9 Consider a system model given by fraction numerator d squared x (t )over denominator d t squared end fraction plus 4 fraction numerator d x (t )over denominator d t end fraction plus 5 x (t )equals 2 fraction numerator d f (t )over denominator d t end fraction plus f (t )x (0 )equals 1 right enclose fraction numerator d x (t )over denominator d t end fraction end enclose subscript t equals 0 end subscript equals 1. What is the impulse response function

how is that middle school

step-by-step explanation:

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

a. she will receive a refund of $278.

step-by-step explanation: