Warm-Ups


1	The graph of x ≥ 0 in the coordinate plane consists of the points on or above the x-axis.
		A)	TRUE
		B)	FALSE


2	The graph of y ≥ 0 in the coordinate plane consists of the points on or to the right of the y-axis.
		A)	TRUE
		B)	FALSE


3	The graph of x + y ≤ 6 consists of the points below the line x + y = 6.
		A)	TRUE
		B)	FALSE


4	The graph of 2x + 3y = 30 has x-intercept (0, 10) and y-intercept (15, 0).
		A)	TRUE
		B)	FALSE


5	The graph of a system of inequalities is a union of their individual solution sets.
		A)	TRUE
		B)	FALSE


6	In linear programming, constraints are inequalities that restrict the possible values that the variables can assume.
		A)	TRUE
		B)	FALSE


7	The function F(x, y) = Ax² + By² + C is a linear function of x and y.
		A)	TRUE
		B)	FALSE


8	The value of R(x, y) = 3x + 5y at the point (2, 4) is 26.
		A)	TRUE
		B)	FALSE


9	If C(x, y) = 12x + 10y, then C(0, 5) = 62.
		A)	TRUE
		B)	FALSE


10	In solving a linear programming problem, we must determine the vertices of the region defined by the constraints.
		A)	TRUE
		B)	FALSE

2002 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.