**Answer:**

D. An exponential parent function

**Step-by-step explanation:**

The basic parent function of any exponential function is f(x) = bx, where b is the base. Using the x and y values from this table, you simply plot the coordinates to get the graphs. The parent graph of any exponential function crosses the y-axis at (0, 1), because anything raised to the 0 power is always 1.

**Answer:**

The point is on the graph of the function.

The equation is

The function is linear.

**Step-by-step explanation:**

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

so in this problem

we have

the equation is equal to

therefore

statements

**case A)** The equation of the function is y = -x

The statement is false

**case B)** The point is on the graph of the function.

The statement is true

Because , the ordered pair satisfy the equation

so

For x=2, y=-6

substitute

------> is true

**case C)** The equation is

The statement is true

**case D) **The function is linear.

The statement is true

The equation represent a linear direct variation

**Answer:**

2 pounds are left.

**Step-by-step explanation:**

12 pounds divided into 6 parts (or sixths) = 2 pounds each. 5 of those 6ths were used, so 10 pounds used. 2 pounds are left.

Alternately, multiply 12 x 5 for your numerator = 60, divide by 5, your denominator, and get 10 pounds used.

If its average speed is .79 miles in an hour, then it goes .79 miles in an hour.