Provide an appropriate response.In the linear function, y = -18 + 21x, -18 is the ? of the function.
A. domain
B. slope
C. x-intercept
D. y-intercept
Answer: D
Mathematics
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Find the center and radius of the circle.(x + 5)2 + y2 = 81
A. (-5, 0), r = 9 B. (5, 0), r = 81 C. (0, 5), r = 9 D. (0, -5), r = 81
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Decide whether the limit exists. If it exists, find its value.lim f(x)x? - 
A. -1 B. Does not exist C. -2 D. 0
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Factor completely. State that the polynomial is prime if it cannot be factored.3y3 - 3y2 - 60y
A. 3y(y - 4)(y + 5) B. 3y(y + 4)(y - 5) C. (y - 4)(3y2 + 15) D. (3y2 + 12y)(y - 5)
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Factor out the common binomial factor as the GCF.6x(4x + 5) - 5(4x + 5)
A. (6x - 5)(4x + 5) B. (24x - 5)(x + 5) C. (24x + 5)(x - 5) D. (6x + 5)(4x - 5)
Mathematics