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atroni [7]
2 years ago
12

Which of the following is not an ordered pair from the function f(x) = -3x + 4?

Mathematics
1 answer:
gtnhenbr [62]2 years ago
4 0
Answer: D


Explanation: For this problem you can substitute f(x) and x for 21 and -6 respectively.

Thus, we have 21=-3(-6)+4
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If EF = x + 5, DC = 2x + 4, and AB = 2x + 2. Find EF.<br><br>​
bonufazy [111]

Answer:

B *second one down.

Step-by-step explanation:

EF = 1/2(AB + CD)

x+5 = 1/2 (2x + 2 + 2x+4)   Combine the like terms on the right.

x+5 = 1/2 (4x + 6)                Remove the brackets.

x+5 = 1/2*4x + 1/2*6

x+5 = 2x + 3                       Subtract x from both sides

5 = 2x-x + 3

5 = x + 3                            Subtract 3 from both sides

5-3 = x

x = 2

EF = x + 5

EF = 2 + 5

EF = 7

The answer is B

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Find the slope of the line using the points (0,4) and (-3,6)
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slope = - \frac{2}{3}

calculate the slope m using the gradient formula

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