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3 years ago

Which is the best approximate solution of the system of linear equations y = 1.5x – 1 and y = 1?

Mathematics

2 answers:

Ad libitum [116K]3 years ago

8 0

the correct answer is: B

kolbaska11 [484]3 years ago

7 0

1 = 1.5x - 1
1 + 1 = 1.5x
2 = 1.5x
2/1.5 = x
1.33 = x

solution is : (1.33,1)

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Help needed on this composition math problem

Marrrta [24]

Given that f(x) = x/(x - 3) and g(x) = 1/x and the application of function operators, f ° g (x) = 1/(1 - 3 · x) and the domain of the resulting function is any real number except x = 1/3.

<h3>How to analyze a composed function</h3>

Let be f and g functions. Composition is a binary function operation where the variable of the former function (f) is substituted by the latter function (g). If we know that f(x) = x/(x - 3) and g(x) = 1/x, then the composed function is:

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To learn more on composed functions: brainly.com/question/12158468

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2 years ago

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3 years ago

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Paul [167]

Answer: Vertex = (2, -15) 2nd point = (0, -3)

Step-by-step explanation:

g(x) = 3x² - 12x - 3

= 3(x² - 4x - 1)

a=1 b=-4 c=-1

Find the x-value of the vertex by using the formula for the axis of symmetry: $x = \dfrac{-b}{2a}$

$x = \dfrac{-(-4)}{2(1)}$

$= \dfrac{4}{2}$

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Find the y-value of the vertex by plugging the x-value (above) into the given equation: g(x) = 3x² - 12x - 3

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So, the vertex is (2, -15) ← PLOT THIS COORDINATE

Now, choose a different x-value. Plug it into the equation and solve for y. I chose x = 0

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So, an additional point is (0, -3) ← PLOT THIS COORDINATE

5 0

3 years ago