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SVEN [57.7K]
3 years ago
8

HELP PLZ When x = -2, which of the following points is on the graphed line y = -4x + 3?

Mathematics
1 answer:
trapecia [35]3 years ago
6 0

y = f(x) =  - 4x + 3 \\ \Rightarrow f( - 2) =  - 4( - 2) + 3 = 8 + 3 = 11 \\ \Rightarrow ( - 2,11)

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Answer:

option D.

Step-by-step explanation:

average rate of change in steel production over the eight days=-0.15 tons per day

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2 years ago
Solve the system (x-1)²+(y-2)²=2² and y=2x+2.
Likurg_2 [28]

Answer:

  (x, y) = (-0.6, 0.8)  or  (1, 4)

Step-by-step explanation:

Use the second equation to substitute for y in the first.

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  x -2x +1 + 4x² = 4 . . . . . . . eliminate parentheses

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Now we can rearrange the middle term to ease factoring by grouping.

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The values of x that make these factors zero are ...

  x = -3/5, x = 1

The corresponding values of y are ...

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___

A graphing calculator verifies these solutions.

3 0
3 years ago
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