Choose the equation that matches the graph.
A. y2 = 4x
B. y2 = -4x
C. -4y2 = x
D. x2 = -4y
Answer: B
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Solve the equation for y.4x + y = 16
A. y = 4 - x
B. y = 4x + 16
C. y = 16 - 4x
D. y = 
Solve the equation.5 - 11 + 8 = 7 + x - 2
A. x = 11 B. x = 29 C. x = -7 D. x = -3
Tell whether the relation is reflexive, symmetric, or transitive on the set of all people. Also tell whether the relation is an equivalence relation."Lives next door to"
A. Symmetric; not an equivalence relation B. Transitive; not an equivalence relation C. Symmetric and transitive; equivalence relation D. Reflexive and symmetric; not an equivalence relation
Use a calculator set in degree or radian mode, as appropriate, to find the value of each expression to four decimal places.csc 80°
A. 1.0154 B. 1.0525 C. 1.0061 D. 1.0117