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nadya68 [22]
2 years ago
13

If f(x) = 5x + 40, what is f(x) when x = -5? 0-8 0.7 O 15

Mathematics
1 answer:
Over [174]2 years ago
4 0

Answer:

15

Step-by-step explanation:

f(x) = 5x + 40

…………………………

when x = -5

f(-5) = 5(-5) + 40

      = -25 + 40

      = 40 - 25

      = 15

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Which equation is a linear function ​
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Answer:

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Step-by-step explanation:

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

If

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m < 0, then a line is falling

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<h2>a.</h2>

(2, 1) and (4, 5)

m=\dfrac{5-1}{4-2}=\dfrac{4}{2}=2>0\to\text{rising}

<h2>b.</h2>

(-1, 0) and (3, -5)

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<h2>c.</h2>

(2, 1) and (-3, 1)

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<h2>d.</h2>

(-1, 2) and (-1, -5)

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3 years ago
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6 0
3 years ago
What is the simplified form of this expression?<br><br> 7a2 + 10a − 3a − 2a2
nikklg [1K]

Answer:

What is the simplified form of this expression?

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Step-by-step explanation:

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Combine like terms

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solution=

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6 0
3 years ago
Read 2 more answers
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