Consider the differential equation dy/dx = 2 − y.
(a) Either by inspection or by the concept that
y = c, −[infinity] < x < [infinity],
is a constant function if and only if
y' = 0,
find a constant solution of the DE.
y =
(b) Using only the differential equation, find the intervals on the y-axis on which a nonconstant solution
y = ϕ(x)
is increasing. Find the intervals on the y-axis on which
y = ϕ(x)
is decreasing. (Enter your answer using interval notation.)
increasing
decreasing

answer: it's a

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

1,8,15,22,29,36,43,50

step-by-step explanation: