For the given graph: a) In words, describe the function shown on the graph. b) Find the slope of the graph and express it as a rate of change (be sure to include units). c) Briefly discuss the conditions under which a linear function is a realistic model for the given situation.
What will be an ideal response?
a) As the length of the race increases, the average speed decreases.
b) -0.7 (km/hr)/km hour.
c) The model is a rough approximation.
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Which of the following is not possible for the slope of the line containing the points: (-4,5) and (-2,1)? ?
A. ?The slope is negative. B. ?The slope is -2. C. ?The slope is positive. D. ?The slope is found using the formula . E. ?None of the above.
Suppose the distance s (in feet) covered by a car moving along a straight road after t sec is given by the function 
. Calculate the (instantaneous) velocity of the car when t=35.
a. 223 ft/sec b. 16 ft/sec c. 560 ft/sec d. 4130 ft/sec
Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(6x + 11)2
A. 36x2 + 121 B. 36x2 + 132x + 121 C. 6x2 + 132x + 121 D. 6x2 + 121
Provide an appropriate response.A compound interest table shows the compounded amount per dollar of principal.
A. True B. False