For the verbal description of a function, write a formula for f.Function f multiplies the input x by 4 and then adds 7 to the result to obtain the output y.
A. f(x) = 4x + 7
B. f(x) = 7x - 4
C. f(x) = 4x - 7
D. f(x) = 7x + 4
Answer: A
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Use the Fixed-Point Algorithm with x1 as indicated to solve the equation to five decimal places.x = 3 - sin x; x1 = 2
A. 2.09070 B. 2.17975 C. 2.16500 D. No solution
Solve the problem.A rectangular piece of cardboard 8.00" x 6.00" has squares of equal size cut from each corner and the sides turned up to form a box. If the volume of the box is 10.0 inches3, find the length of each square.
A. 2.359 in. B. 1.571 in. C. 2.353 in. D. 2.355 in.
Solve the problem.In 1990 the number of factory pollution incidents reported in Country X was 7500. This number had decreased roughly at a rate of 440 per year since 1982. (i) Find an equation of a line 
that describes this data, where y represents the number of pollution incidents during the year x. (Answers may vary.) (ii) Estimate the year when there were approximately 8250 incidents.
A. y = -440(x - 1988) + 7500; 1986 B. y = -440(x - 1982) + 7500; 1980 C. y = -440(x - 1990) + 7500; 1988 D. y = -7500(x - 1990) + 440; 1983
Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.(16x8y4)1/2
A. 4x4y B. 4x4y2 C. x4y2 D. 4x8y2