Sketch the graph of the quadratic function. Give the vertex and axis of symmetry.f(x) = x2 - 4
A. vertex (0, 4); axis x = 0
B. vertex (0, -4); axis x = 0
C. vertex (-4, 0); axis x = -4
D. vertex (4, 0); axis x = 4
Answer: B
Mathematics
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Use the distributive property to rewrite the expression.- 
(-6x + 4y)
A. 3x B. 9x + 6y C. 9x - 6y D. -9x + 6y
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Perform the indicated elementary row operations in the stated order.
; 
A. 
B. 
C. 
D. 
Mathematics
Find the solutions to the system of equations by the addition method.-7x + 7y = 283x + 3y = -12
A. (-5, 0) B. (-4, 0) C. (-5, 1) D. (-4, 1)
Mathematics
Solve the equation.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics