What is the domain and range of these two graphs .?

Mathematics

1 answer:

Vera_Pavlovna [14]3 years ago

5 0

Answer:

5. D: (-4,3] R: (5,-4] 7. D: (-1, 4] R: ( 5, -5]

Step-by-step explanation:

The domain is the point most to the left, and the point most to the right on the graph. The range is the point highest up and the point lowest down on the graph. You make a parentheses when the circle is hollow, but use a bracket when the circle is filled.

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y=width
Area (rectangle)=length x width
we suggest this system of equations:
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solve this system of equations by substitution method:
x(x/5)=9/20
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x=⁺₋√(9/4)
we have two solutions:
x₁=-3/2 it does not validate
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