10. Identify the lines that are perpendicular. y = 4; y=-3x-4;x = -6;y + 5 = 2(x + 2)

a. X-4 and y + 5 = 2(x + 2) are
perpendicular.

b. y = 4 and x = -6 are perpendicular;
- 4 and y + 5 = 2(x + 2) are
perpendicular.

c. none of these lines are perpendicular

d. y = 4 and x = -6 are perpendicular.
y = -1/2 x

How do you determine if an ordered pair is a solution to a given equation?

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.

5, 6, 10 question: a. determine whether the side lengths form a triangle. (explain your reasoning) b. if it is a triangle, determine whether it is a right, acute, or obtuse triangle. (show your work)