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3 years ago

Y= 1/2x-4 and y= -2x-9 what is the solution of equations

Mathematics

1 answer:

azamat3 years ago

8 0

Answer:

(x,y)=(-2,-5)

Step-by-step explanation:

y=1/2x-4

y=-2x-9

(y=) 1/2x-4=-2x-9

1/2x +2x=-9+4

1/2x +4/2x=-5

5/2x=-5

5x=-5*2

5x=-10

x=-2

y=-2x-9=-2*(-2)-9=4-9=-5

(x,y)=(-2,-5)

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Answer:

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2 years ago

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3 years ago

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3 years ago

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Read 2 more answers

Complete a table with at least 5 points then graph the following quadratic on the coordinate plane. Identify all zeros.y = -2x2

Anna [14]

Answer:

See attached

Step-by-step explanation:

Given function:

y = -2x² + 5x + 8

Table and graph are attached

Zeros are included in the graph

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x = 0 ⇒ y = 8

y = 0 ⇒ Solving quadratic equation

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x = 3.608
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So zeros are (0, 8), (3.608, 0) and (-1.108, 0)

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3 years ago