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

simplify 4y-28=2(y+2)
what is the estimate of the sum of 6/10 + 7/12
Who is Jack London and what is he useful for? Where Does he live?
what does the rotation of the Earth cause?
what determines the quality of a conductor
a group of four students is performing an experiment with salt. each student must add three eights teaspoon of salt to a solution. the group only has one eight
sales £18,500.00 staff £3367. what is this as a percentage
sierra's karate class lasts 56 days how many weeks does da class last
explain the difference between these 3 lenghs: 4cm 4.0cm and 4.00cm ????
In what way did ancient Athens influence the framers of the United States Constitution.