Graph the equation and give the coordinates of the vertex.y = x2 - 5
A. (5, 0)
B. (0, -5)
C. (-5, 0)
D. (0, 5)
Answer: B
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Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: {x|x ? 0} range: {y|y ? -2} intercepts: (-2, 0), (0, -2), (2, 0) symmetry: y-axis B. function domain: all real numbers range: all real numbers intercepts: (-2, 0), (0, -2), (2, 0) symmetry: none C. function domain: {x|x ? -2} range: {y|y ? 0} intercepts: (-2, 0), (0, -2), (2, 0) symmetry: none D. not a function
Evaluate the expression.72 - 4 ? 5
A. 225 B. 105 C. 29 D. 45
Find a so that the statement is true.
a = __________
Fill in the blank(s) with the appropriate word(s).
Write the linear system corresponding to the reduced augmented matrix.
A. x1 = -4, x2 = t + 6, x3 = t for any real number t B. No Solution C. x1 = 4, x2 = -t + 6, x3 = t for any real number t D. x1 = 4, x2 = t + 6, x3 = 0