sipstea sipstea

04-05-2017
Mathematics

contestada

the value of y varies directly as x, y is 9 when x is -3 what is the constant of variation k

Respuesta :

04-05-2017

direct variation has the form y=kx. Given a point we can solve for the constant k.

y=kx, when y=9 and x=-3 becomes:

9=-3k

k=-3 so the constant of variation is negative 3

Answer Link

Otras preguntas

A box if cereal has a volume of 384 cubic inches . If width of the box is 4 inches and the length is 8 inches , what is the height of the box?

How was Martin Luther King a significant figure in the Civil Rights Movement?

A picture frame for a square picture has an area of 80 square inches. What is the length of the picture?

Please help me solve the equation3x+10y=487x+4y=54

__________ means to move from one region to another. When animals regularly move as a group from one region to another and back, it's a ______________.

Air Mass is a large body of air that has the same ____________ and ___________ throughout.

What does an acid+base make

Aqueous solutions of this ion give a reddish precipitate when excess hydroxide ion is added. (A) Cu^{2+} (B) CO₃^{2−} (C) Fe^{3+} (D) Al^{3+} (E) Pb^{2+}

Two identical capacitors are arranged in a circuit. What is the ratio of the equivalent capacitance of the circuit when the capacitors are in series to that whe

Why does a bike get heavier when it rusts???Very confussed, I cant find anything on the internet :( please help