odettecruz
odettecruz odettecruz
  • 02-02-2016
  • Mathematics
contestada

If (-3, y) lies on the graph of y = 3^-x, then y =

Respuesta :

Leader
Leader Leader
  • 02-02-2016
Simply plug in x= -3 in to y = 3^-x, and solve for y.

[tex]y=3^{-(-3)}\\\\y = 3^3\\\\\boxed{\bf{y=27}}[/tex]

So, the point (-3, 27) lies on the graph of y = 3^-x.

Your final answer is y = 27.
Answer Link
Kytten
Kytten Kytten
  • 02-02-2016
Because (-3, y) is a solution of y = 3^-x, substitute -3 into the equation for x. So y = 3^-(-3) = 3^3 = 3 x 3 x 3  = 27. Answer y = 27, the point is (-3, 27)
Answer Link

Otras preguntas

How do you graph this?
O 17. Find the surface area of the sphere. 288 mm 900 mm² O225 mm² O 216 mm² r = 15 mm
negative economic impacts of floods​
WHAT IS THE AUTHORES POINT USE THE EVIDINCE TO COMPLETE THE CHART MONEY AND SENSE STROY IREADY
Old MacDonald has 100 chickens and goats in the barnyard.​ Altogether, there are 298 feet. How many chickens and how many goats are in the​ barnyard?
the vertices of a triangel are A(0.0), B(3,8),and C(9,0)
Do you think NASA was a socially progressive organization in 1961? Why or why not? What Jim Crow etiquette is observed at NASA? How does it change from the begi
Complete the sentence with a word that has the same root as the word in bold. For example, a person who collects stamps is a stamp collector. The child was in h
what is water pollution ,For class 6​
what is socio religious reform?​