If there is a graph of a ray, with the end point on (3,0). The line goes through (0, 2), and (-3, 4), What is the domain and range?

1 Answer
marfre
Jun 2, 2018

Domain: #x <= 3 " or " (-oo, 3]#
Range: #y >= 0 " or " [0, oo)#

Explanation:

Given: a ray with endpoint #(3, 0)# that goes through #(0, 2)# and #(-3, 4)#

The ray starts at #(3, 0)# and goes in the negative direction from quadrant 1 to quadrant 2.

The lowest point is the endpoint #(3, 0)#. The point farthest to the right is also the endpoint.

Domain: #x <= 3 " or " (-oo, 3]#
Range: #y >= 0 " or " [0, oo)#

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