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Brilliant_brown [7]
3 years ago
14

Ldentify the slope and yintercept of the function y = 3x- 6.

Mathematics
1 answer:
Katarina [22]3 years ago
8 0

QUESTION:

Identify the slope and y-intercept of the function y = 3x - 6

ANSWER:

In all choices the correct answer is \green{\boxed{B}}

Slope: \green{{3}}

y-intercept: \green{{0, -6}}

EXPLANATION:

The slope-intercept form is \blue{{y = mx + b,}} where \blue{{m}} is the slope and \blue{{b}} is the y-intercept

\green{{y = mx + b}}

Find the values of \blue{{m}} and \blue{{b}} using the form:

\green{{y = mx + b}}

\green{{m = 3}}

\green{{b = -6}}

The slope of the line is the value of \blue{{m}}, and the y-intercept is the value of \blue{{b}}

Slope: \green{\boxed{3}}

y-intercept: \green{\boxed{(0, -6)}}

hope it's helps

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Answer:

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Step-by-step explanation:

To find the composite function N(T(t)), we just need to use the value of T(t) for each T in the function N(T). So we have that:

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N(T(t)) = 22 * (64t^2 + 27.2t + 2.89) - 984t - 209.1 + 40

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Now, to find the time when the bacteria count reaches 8019, we just need to use N(T(t)) = 8019 and then find the value of t:

8019 = 1408t^2 - 385.6t - 105.52

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Solving this quadratic equation, we have that t = 2.543 hours, so that is the time needed to the bacteria count reaching 8019.

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