Which function represents exponential decay with 5% as the rate of decrease?

The function that represents exponential decay is y = 50 ⇒ B

Step-by-step explanation:

The form of the exponential growth function is y = a

The form of the exponential decay function is y = a

∵ The function represents exponential decay with 5%

→ By using the second rule above

∴ y = a

∵ The rate of decrease is 5%

∴ r = 5%

→ Change it to decimal by dividing it by 100

∵ 5% = 5 ÷ 100 = 0.05

∴ r = 0.05

→ Substitute it in the equation

∵ y = a

∴ y = a

→ Look at the answer to find which equation is written in this form

∴ y = 50

∴ The function that represents exponential decay is y = 50

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )