wegergegbduegh2481 wegergegbduegh2481
  • 22-10-2021
  • Mathematics
contestada

Write an

exponential function in the form y = ab^x

that goes through points (0,13) and (3,832).

Respuesta :

jimrgrant1 jimrgrant1
  • 22-10-2021

Answer:

y = 13 × [tex]4^{x}[/tex]

Step-by-step explanation:

Substitute the given values into the exponential

Using (0, 13 ) , then

13 = a[tex]b^{0}[/tex] ( [tex]b^{0}[/tex] = 1 ) , so

a = 13

y = 13 [tex]b^{x}[/tex]

Using (3, 832 )

832 = 13 b³ ( divide both sides by 13 )

64 = b³ ( take cube root of both sides )

b = [tex]\sqrt[3]{64}[/tex] = 4

The exponential function is

y = 13 [tex](4)^{x}[/tex]

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