The graph of a quadratic function has a domain of (-∞, ∞) and range of [4, ∞). in two or more complete sentences, explain how the given range of the function can you to determine whether the graph opens up or down.

Opens Up

Step-by-step explanation:

Here we are given that the range starts with 4 and goes upto positive infinity.4 is on the positive side of y axis , and positive infinity lies much above the 4 . Hence  all the y coordinates of the graph will be lying above 4 and extends upto positive  infinity. Hence the graph is opening up.  however if the range would have been extending towards negative infinity , the parabola would be opening down.

false

step-by-step explanation:

the solution, from the graphing of the two lines, is (3,2), i.e., x = 3, y = 2.