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Lunna [17]
3 years ago
5

WILL GIVE THE BRAINLIEST! Which of the following inequalities can be represented by the graph?

Mathematics
1 answer:
Maru [420]3 years ago
3 0
<h3>Answer: Choice A) y \ge 2x-2</h3>

=========================================

Explanation:

The boundary line is y = 2x-2. This line goes through (0,-2) and (2,2). Use the slope formula to find the slope to be m = 2, and use the y intercept b = -2 to help form the equation.

Since the boundary line is solid, we will have "or equal to" as part of the inequality sign. This indicates points on the boundary are part of the solution set. Furthermore, we will have a greater than sign because the shaded region is above the boundary. Therefore, we change the equal sign to a "greater than or equal to" sign, going from y = 2x-2 to y \ge 2x-2

If we simply did y > 2x-2 without the "or equal to" portion, then the boundary line would be dotted or dashed to tell the reader "points on the boundary are not part of the solution set".

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Write an equation for the graph of each line.<br><br>​
emmasim [6.3K]

Answer:

5. y = 2x + 4

6. y = (-1/2)x - 2

Step-by-step explanation:

5. We want to find the slope-intercept form of this, which is y = mx + b, where m is the slope and b is the y-intercept.

Slope is change in y divided by change in x. Here, let's take two random points: (-2, 0) and (0, 4). Then we have:

m = (4 - 0) / (0 - (-2)) = 4 / 2 = 2

The slope is thus 2.

The y-intercept is where the line crosses the y-axis. We see it does so at the point (0, 4), so b = 4.

Our equation is thus: y = 2x + 4.

6. Again, let's find the slope. Pick any two points: (-4, 0) and (0, -2). The slope will be:

m = (-2 - 0) / (0 - (-4)) = -2 / 4 = -1/2

Now, look at the point (0, -2); that's where the line crosses the y-axis, so the y-intercept is b = -2.

Thus, the equation is: y = (-1/2)x - 2.

3 0
3 years ago
Read 2 more answers
Covert 9.46×^10-6 into regular notation
weqwewe [10]

Answer:

0.00000946

Step-by-step explanation:

9.46×^10⁻⁶ =0.00000946

<u>Trick:</u>

Since the exponent of the scientific notation is negative, move the decimal point 6 places to the left

5 0
3 years ago
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stiks02 [169]

Answer:

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Step-by-step explanation:

It usually works to follow instructions:

  3.3 = log(x) . . . . . substitute known values into the equation

  10^3.3 = x . . . . . take antilogs

  1995.26 = x . . . .  simplify, round to hundredths

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3 years ago
What is the image of A(3, 5) under the translation (x - 4, y - 3) ?
azamat
C because (x-4,y-3) = c
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Hakeem's front porch measures 9 3/4 feet by 4 feet . Estimate the area of his front porch.
Nostrana [21]
Round 9 3/4 to 10 ft

10 × 4 = 40 ft²

answer is 40ft² estimated
6 0
3 years ago
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