Determine the slope and the y-intercept of the graph of the equation.x + y + 5 = 0
A. m = -1; (0, -5)
B. m = 1; (0, -5)
C. m = -1; (0, 5)
D. m = 0; (0, -5)
Answer: A
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Solve the problem.The gravitational attraction between two masses varies inversely as the square of the distance between them. If the force of attraction is 4 lb when the masses are 3 ft apart, what is the attraction when the masses are 6 ft apart?
A. 3 lb B. 4 lb C. 2 lb D. 1 lb
Solve the system by substitution. If the system is inconsistent or dependent, say so.
A. (-3, 6) B. (3, 5) C. (2, 6) D. empty set solution; inconsistent system
Solve the system of equations by the substitution method. Check your solutions. For any dependent equations, write your answer in ordered pair form.
A. {(1, 0)} B. {(0, 0)} C. {(1, 1)} D. {(0, 1)}
Solve the system of linear equations by the method of elimination, find (x,y).
?
?
?
A. No solution B. ?(20 + 9a, a) (infinitely many solutions) C. (-3, -7) D. (38, 2) E. (-7, -3)