(a)

Find and .

Observe the graph of the function :

At , the value of is .

At , the value of is .

Thus, and .

(b)

Find and .

Observe the graph of the function :

At , the value of is .

At , the value of is .

Thus, and .

(c)

Observe the graph of the function :

The point corresponding to is below the - axis.

.

Thus, is negative.

(d)

Observe the graph of the function :

The point corresponding to is above the - axis.

.

Thus, is positive.

(e)

Observe the graph of the function :

At , , and the value of .

Thus, the values of , and .

(f)

Observe the graph of the function :

For the interval the function .

(g)

Observe the graph of the function :

The domain of is .

(h)

Observe the graph of the function :

The range of is .

(i)

-intercepts are the values of  , Where the graph touches the - axis.

Observe the graph of the function :

The -intercepts are and .

(j)

-intercepts are the values of  , Where the graph touches the - axis.

Observe the graph of the function :

The -intercept is .

(k)

The horizontal line will intersects the graph at 2 times.

(l)

The vertical line will intersects the graph once.

(m)

Observe the graph of the function :

At , the value of .

Thus, the value of .

(n)

Observe the graph of the function :

At , the value of .

Thus, the value of .

(a) and .

(b)  and .

(c) Negative.

(d) Positive.

(e) .

(f) .

(g) .

(h) .

(i)  and .

(j) .

(k) 2 times.

(l) Once.

(m)

(n) .