Find the value of the constant k that makes the function continuous.f(x) = 
A. k = 14
B. k = 6
C. k = 8
D. k = 2
Answer: D
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Find the x-intercepts for the parabola whose equation is given. If the x-intercepts are irrational, round your answers to the nearest tenth.y = -x2 + 9x - 20
A. x-intercepts (4, 0) and (5, 0) B. x-intercepts (4, 0) and (-5, 0) C. x-intercepts (-4, 0) and (-5, 0) D. No x-intercepts
Evaluate the expression for the given values of the variables, if possible.-x + y ? 4, for x = 6, y = 6
A. 144 B. 18 C. 12 D. 30
Solve.The temperature at 5:00 was -4°C. Four hours later, it was -12°C. What was the change in temperature?
A. -16°C B. 16°C C. 8°C D. -8°C
Solve the number problem by finding the value of the unknown number.The product of 5 and a number is the same as 28 less twice that same number.
A. -4 B. 4 C. 14 D. -14