Evaluate the expression, given x = -2, y = 3, and a = -4.9x + 8y - 2a
A. 19
B. -56
C. -8
D. 14
Answer: D
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Evaluate the expression for the given values. If necessary, round to the nearest tenth.
x = 7, y = 5
A. 7 B. 1 C. 5 D. 2
Identify the given number as "Rational", "Irrational", or "Not a real number". If the number is rational, give its exact value. If the number is irrational, give a decimal approximation to the nearest thousandth.- 
A. Rational, -11.358 B. Irrational, -11.358 C. Irrational, 11.358 D. Not a real number
Factor the sum or difference of two cubes completely.27x3 - y3
A. (27x - y)(x2 + 3xy + y2) B. (3x - y)(9x2 + y2) C. (3x + y)(9x2 - 3xy + y2) D. (3x - y)(9x2 + 3xy + y2)
Answer the question or write an explanation.Is the origin a good test point in graphing an inequality of the form Ax + By < 0? Why or Why not?
What will be an ideal response?