Which of the following could be the equation of the graph shown below? check all that apply

Only Choices A and C are correct.

Step-by-step explanation:

The graph has negative slope and its y-intercept is a positive value, and the equations we are looking for should have these two properties.

Let us look at the choices one by one.

Choice A:

We solve for y and get:

This has negative slope and positive y-intercept, therefore this choice is true.

Choice B:

This is a horizontal line, therefore this choice cannot be correct.

Choice C:

This has negative slope and positive y-intercept, therefore this choice is true.

Choice D:

Solve for y and get:

This has positive slope and negative y-intercept, which are not the characteristics of our graph. Therefore this choice is not correct.

Thus only choices A and C apply.

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.

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40