mkpstorm2023
mkpstorm2023 mkpstorm2023
  • 09-03-2020
  • Mathematics
contestada

Where does the function y = − 5 ( 0.5 ) x cross the y-axis?

Respuesta :

kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 16-03-2020

Answer:

(0,-5)

Step-by-step explanation:

The given function is :

[tex]y = - 5 {(0.5)}^{x} [/tex]

We want to find the point where the graph touches the y-axis.

At this y-intercept, the x-value is zero.

So we put x=0 into the equation to obtain:

[tex]y = - 5(0.5)^{0} [/tex]

We evaluate exponents to get:

[tex]y = - 5(1)[/tex]

[tex]y = - 5[/tex]

The function crosses the y-axis at (0,-5).

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