Determine the continuity of the function at the given points.f(x) = 
at x = 1 and x = 3
A. The function f is continuous at both 
and 
B. The function f is continuous at neither 
nor 
C. The function f is continuous at 
but not at 
D. The function f is continuous at 
but not at 
Answer: D
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Solve the problem.Find the points of intersection of the parabola 
and the circle with center at the origin and radius 12.
A. 
and 
B. 
and 
C. (-4, -16) and (-4, 16)
D. (-16, -16) and (-16, 16)
Find the value of the determinant.
A. -12 B. 130 C. 80 D. -90
Find an equation of a parabola satisfying the given conditions.Focus at (-5, -1), directrix y = 9
A. (y + 5)2 = -20(x - 4) B. (x + 5)2 = -20(y + 4) C. (y + 5)2 = -20(x + 4) D. (x + 5)2 = -20(y - 4)
Solve the system of equations using matrices. 5x + y = 5 7x + 2y = 4
A. (2, -2) B. (-5, 2) C. (-5, -2) D. (2, -5)