Use the discriminant to determine whether the graph of the equation is an ellipse (or circle), a hyperbola, or a parabola.8x2 - 4xy + 4y2 - 20 = 0
A. Parabola
B. Ellipse or circle
C. Hyperbola
Answer: B
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Use a system of linear equations in two variables to solve the problem.University Theater sold 524 tickets for a play. Tickets cost $24 per adult and $14 per senior citizen. If total receipts were $9006, how many senior citizen tickets were sold?
A. 257 senior citizen tickets B. 357 senior citizen tickets C. 267 senior citizen tickets D. 167 senior citizen tickets
Provide an appropriate response.Why must decimal points be lined up in division of decimals?
What will be an ideal response?
Provide an appropriate response.What is the relationship between the slopes of two parallel lines?
A. They are equal. B. One slope is the reciprocal of the other. C. There is no general relationship, because the y-intercepts can be different. D. One slope is the negative of the other.
Use cross products to determine whether the proportion is true or false.
= 
A. True B. False