Coordinates and Input Output

Is this a function?

• Yes, because all inputs have one output

• No, because 40 has two inputs

• Yes, because all outputs have one input

• No, because 2 has two outputs

Is this a function?

• Yes, because all inputs have one output

• No, because 30 has two inputs

• Yes, because all outputs have one input

• No, because the lines are not straight across

Is this a function?

• No, because 6 repeats itself

• Yes, because all inputs have one output

• No, because 2 repeats itself

• Yes, because all outputs have one input

Is this a function?

• No, because 2 repeats itself

• Yes, because all inputs have one output

• No, because 1 repeats itself

• Yes, because all outputs have one input

Given P (4, 5) and Q (10, 14). Point R divides line segment PQ such that the ratio of PR to RQ is 1:2. Match each value or set of coordinates approximately.

• 9

• 6

• The ratio of Part to Whole

• 8

• The y-coordinate of R

• 1/3

• 6

• The x-coordinate of R

The ​ (a)   is the vertical axis in a coordinate plane.

• y-axis

• x-axis

• origin

• ordered pair

Given PQRS with P (3, 1), Q (8, 1), R (10, 4), and S (5, 4). If the diagonals intersect at point T, what are the coordinates of point T?

T = _​ (a)  

• (6.5, 2.5)

• (5, -3)

• (7, 3)

• (5.5, 1)

• (7.5, 4)

The ​ (a)   is the intersection of the x- and y-axes in a coordinate plane. The coordinated are (0,0)

• Origin

• Ordered Pair

• Domain

• Range

Is this a function?

Hint: use the vertical line test

• Yes, because a vertical line touches only one point on the relation

• No, because a vertical line touches only one point on the relation

• Yes, because a vertical line touches more than one point on the relation

• No, because a vertical line touches more than one point on the relation

Is this a function?

Hint: use the vertical line test

• Yes, because a vertical line touches only one point on the relation

• No, because a vertical line touches only one point on the relation

• Yes, because a vertical line touches more than one point on the relation

• No, because a vertical line touches more than one point on the relation