How do I decide whether a relation is a function or not?

George tells you that when variables are in the denominator, the equation four over five plus three over x equals one over two becomes unsolvable. George explains, "There is a value for x that makes the denominator zero, and you can't divide by zero.

Which equation (s) represents a proportional relationship? A) y=7x^2 B) y=2+3x C) y=1/2x D) y = 5-x show work

What is. 5 (10x+20y+10z)

Ken drives a taxi cab and receives $100 a day plus $0.50 for every mile he drives. He is saving up for a new television that costs about $2500.

Vivi scored 5 goals in Saskatoon sticks lacrosse tournament. This was 1/8 of her teams goals. How many goals did vivi's team score altogether

Evaluate. -0.2916 : (-2.7)

Find the missing dimension of the cone. Volume = 1959.36 Diameter = 12 Height = ?

75% of the students who bought lunch yesterday ate chicken patties. If 120 students ate chicken patties, what was the total number of students who bought lunch?

Which of the following is a geometric series? A. 40 + 50 + 60 + 70 B. 40 + 42 + 44 + 46 C. 40 + 80 + 40 + 120 D. 40 + 20 + 10 + 5

A tent company has a tent design that is a triangular prism. The following is a net of the design. if a = 82 inches, b=83 inches, c=60 inches, and d=76 inches, how much fabric is needed to make the tent?