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devlian [24]
3 years ago
10

NEED THE ANSWER ASAP PLEASE

Mathematics
2 answers:
solniwko [45]3 years ago
8 0

Answer:

y=3x+1

Step-by-step explanation:

Using the slope-intercept equation:

y=mx+b

m = \text Slope\\ b = \text Y-intercept

The y-intercept is (0,1).

b = 1

We need to find the slope to replace m.

Use the slope formula and points (-1, -2) and (1,4):

m=\frac{y_2-y_1}{x_2-x_1} =\frac{4-(-2)}{1-(-1)} =\frac{6}{2} =3\\m=3

The slope is 3.

Replace m with three and b with 1.

y=3x+1

The equation should be y=3x+1.

snow_tiger [21]3 years ago
6 0

Answer:

y = 3x + 1

Step-by-step explanation:

The standard equation of a line is y = mx + b, where m is the slope of the line and b is the y-intercept. You can calculate slope counting rise over run or by labeling points as x1, y1, x2, y2 and calculating, but in this case you can easily see that when you rise up 3 units, you run 1 unit, making the slope 3. Now that we know m=3, look for b, or where the line crosses through the y- axis (the vertical axis). It is seen crossing through at 1, so you can now put those values into the equation and see that the line is y=3x+1. Hope this helps and let me know if you have any questions! :)

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What is the result of converting 81 inches to feet ? Remember, there are 12 inches in a foot.
zysi [14]

Answer:

6.75 ft

Step-by-step explanation:

81 inches

We know there are 12 inches in 1 ft

81 inches * 1 ft/ 12 inches = 81/12 ft =6.75 ft

5 0
3 years ago
What is the slope of the line passing through the points (-3,-5) and (2,-5)
kogti [31]

Answer

m = 10

Step-by-step explanation:

Formula:

m = (y2 - y1) / (x2 - x1) => plug in points

(-3,-5) and (2,-5)

3 0
3 years ago
I need to get both into y=mx+b
quester [9]

Isolate the y for both questions. Note that what you do to one side, you do to the other. Do the opposite of PEMDAS.

First question: x - 5y ≥ 3

First, subtract x from both sides

x (-x) - 5y ≥ 3 (-x)

-5y ≥ -x + 3

Divide -5 from both sides. Note that when you divide by a negative number, you flip the equation.

(-5y)/-5 ≥ (-x + 3)/-5

y ≤ (-x + 3)/-5

y ≤ x/5 - 0.6

------------------------------------------------------------------------------------------------

Do the same for the second one. Subtract x from both sides

x + y < 0

x (-x) + y < 0 (-x)

y < - x

~

5 0
3 years ago
Read 2 more answers
Which equation is an identity?
miskamm [114]

Answer:

D

Step-by-step explanation:

To be an identity we require both sides of the equation to equate

A

8x + 9 ≠ 8x - 3 ← not an identity

B

7x - 2 = 8x + 4 - x = 7x + 4 ≠ 7x - 2 ← not an identity

C

11 - (2x + 3) = 11 - 2x - 3 = - 2x + 8 ≠ - 2x - 8 ← not an identity

D

5x + 8 - x = 6x - 2(x - 4), that is

4x + 8 = 6x - 2x + 8 = 4x + 8 ← both sides equate thus an identity

5 0
3 years ago
7. ***HINT: MEAN = AVERAGE *
Korolek [52]
The mean is 4.9 miles per day
3 0
3 years ago
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