Answer:
y+1=1/2(x-2)
Step-by-step explanation:
y-y1=m(x-x1)
y-(-1)=1/2(x-2)
y+1=1/2(x-2)
Answer:
x equals plus or minus square root of 5 minus 1
Step-by-step explanation:
we have

Divide by 2 the coefficient of the x-term

squared the number

Adds both sides


Rewrite as perfect squares

take the square root both sides


therefore
x equals plus or minus square root of 5 minus 1
after 8 hours there are 995 bacteria cells left
let y be the amount after 8 hours
the multiplying factor is 100 - 5 = 95 % = 0.95
y = 1500 ×
= 995