3. Functions

Determine whether the three points are the vertices of a right triangle. See Example 3.

$(-2,-8),(0,-4),(-4,-7)$

Determine whether the three points are the vertices of a right triangle. (-4,1),(1,4),(-6,-1)

Determine whether the three points are the vertices of a right triangle. See Example 3.

$(-2,-5),(1,7),(3,15)$

Determine whether the three points are collinear. (0,-7),(-3,5),(2,-15)

Determine whether the three points are collinear. (0, 9),(-3, -7),(2, 19)

Determine whether the three points are collinear. (-7,4),(6,-2),(-1,1)

Find the coordinates of the other endpoint of each line segment, given its midpoint and one endpoint. See Example 5(b).

midpoint $(5,8)$, endpoint $(13,10)$

Find the coordinates of the other endpoint of each line segment, given its midpoint and one endpoint. See Example 5(b).

midpoint $(12,6)$, endpoint $(19,16)$

Find the coordinates of the other endpoint of each line segment, given its midpoint and one endpoint. See Example 5(b).

midpoint $(6a,6b)$, endpoint $(3a,5b)$

Fill in the blank(s) to correctly complete each sentence. The domain of the relation { (3,5), (4, 9), (10, 13) } is _____.

Fill in the blank(s) to correctly complete each sentence. The equation y = 4x - 6 defines a function with independent variable______ and dependent variable ________ .

Fill in the blank(s) to correctly complete each sentence. For the function ƒ(x) = -4x + 2, ƒ(-2)= ______.

Determine whether each relation defines a function. {(5,1),(3,2),(4,9),(7,8)}

Determine whether each relation defines a function. {(8,0),(5,7),(9,3),(3,8)}

Determine whether each relation defines a function. {(9,-2),(-3,5),(9,1)}