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Sketch the graph of y + 3 = 2x. Homework Help ✎

  1. What are the domain and range of this function?

  2. Does this function have a line of symmetry? If so, what is it?

  3. What are the x- and y-intercepts?

  4. Change the equation so that the graph of the new equation has no x-intercepts.

Domain: all real numbers
Range: y >−3

There is no line of symmetry.

(0,−2) and (1.585, 0)

What is the value in the original equation that causes it to have an x-intercept?
How can you change it so that the new equation will not have an x-intercept?