Write the phrase as an algebraic expression. Let x represent the unknown number.Seven times a number decreased by 23
A. 23 - 7x
B. 23x - 7
C. 7x - 23
D. 7x + 23
Answer: C
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Graph the quadratic function. Determine the vertex, find the equation of the axis of symmetry, find any x- and y-intercepts, and state the domain and range in interval notation.f(x) = x2 - 12x + 36
A. vertex: (6, 36)
axis of symmetry: x = 6
x-intercept: none; y-intercept: 72
domain: (-?, ?); range: [36, ?)
B. vertex: (-6, 0)
axis of symmetry: x = -6
x-intercept: -6; y-intercept: 36
domain: (-?, ?); range: [0, ?)
C. vertex: (6, 0)
axis of symmetry: x = 6
x-intercept: 6; y-intercept: 36
domain: (-?, ?); range: [0, ?)
D. vertex: (-6, 36)
axis of symmetry: x = -6
x-intercept: none; y-intercept: 72
domain: (-?, ?); range: [36, ?)
Provide an appropriate response.Determine whether the graph of x2 - xy = 1 is symmetric about the x-axis, the y-axis, the origin, or the line y = x.
Fill in the blank(s) with the appropriate word(s).
Use one of De Morgan's laws to write the negation of the statement.7 + 3 = 10 and 7 - 2 ? 5
A. 7 + 3 = 10 and 7 - 2 = 5 B. 7 + 3 ? 10 and 7 - 2 = 5 C. 7 + 3 = 10 or 7 - 2 ? 5 D. 7 + 3 ? 10 or 7 - 2 = 5
State whether the statement is true or false.
?
The test point (0, 0) satisfies the inequality 
.
?
A. False B. True