Answer the question.The equation y = x2 is satisfied by the points (2, 4) and (-2, 4). A horizontal line may be drawn between these two points. Is 
a function? Why or why not?
What will be an ideal response?
It is a function because each x-value gives one and only one y-value. It passes the vertical line test.
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Find the amount of taxable income and the tax owed for the following people. The letter following the name indicates the marital status and all married people are filing jointly. Use $4050 for each personal exemption; $6300 as the standard deduction for single taxpayers, $12,600 for married taxpayers filing jointly, and $9300 for head of household and the following tax rate schedule.
A. $64,531; $10,430.25 B. $66,179; $11,910.12 C. $64,679; $11,075.25 D. $64,679; $11,312.25
Use a graphical method to solve the system. Give x- and y-coordinates correct to the nearest hundredth.x2 + y2 = 13.85x = 3y - 1
A. (-3.41, -1.47), (3.62, 0.87) B. (-11.26, -3.42), (11.06, 4.02) C. (1.47, 3.42), (-0.87, -3.62) D. (3.42, 1.47), (-3.62, -0.87)
Plot the points with the given coordinates.A(5, -1), B(-6, 4)
What will be an ideal response?
Determine the domain and range of the function.
A. domain: (-?, ?); range: (-?, ?) B. domain: (-?, 3) ? (3, ?); range: (-?, 5) ? (5, ?) C. domain: (-?, 3]; range: (-?, 5] D. domain: (-?, ?); range: (-?, 5]