emilyoram5802 emilyoram5802
  • 15-11-2019
  • Mathematics
contestada

Write an exponential function y = ab^x for a graph that includes (2, 24) and (3, 48).

A. y = 6(2)^x
B. y = 3(4)^x
C. y = 4(3)^x
D. y = 2(6)^x​

Respuesta :

jimrgrant1 jimrgrant1
  • 15-11-2019

Answer:

A

Step-by-step explanation:

Substitute the x and y values from the given points into the equation and solve for a and b

Using (2, 24), then

24 = ab² → (1)

Using (3, 48), then

48 = ab³ → (2)

Dividing (2) by (1)

[tex]\frac{ab^3}{ab^2}[/tex]= [tex]\frac{48}{24}[/tex], hence b = 2

Substitute b = 2 into (1)

24 = a × 2² = 4a ( divide both sides by 4 )

a = 6

Hence equation is y = 6[tex](2)^{x}[/tex] → A

Answer Link

Otras preguntas

Preschoolers __________. are more likely than older children to claim that lying is always wrong cannot distinguish moral imperatives from social conventions ca
protein carrier for copper important iniron homeostasis ​
PLEASE HELP ASAP whoever answers correctly first i will give 5 star thanks and brilliantest
Help please I need a good grade
which river did the British want to take control over Canada to New York City in order to split New England form the rest of the colonies​
(REST OF MY POINTS PLEASE HELP) IS NOT C Read the following excerpt from the Emancipation Proclamation: And by virtue of the power, and for the purpose aforesai
Describe the graph of the function - 15 points
What is the reason for step 3 of this proof
What is the area of a circle with radius of 1 foot
Which benefits are first noticed once a tobacco user quits? psychological benefits societal benefits cardiovascular benefits respiratory benefits