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kondaur [170]
3 years ago
13

I need some help on my math test!!, I get to retake it but I need help with some of it:

Mathematics
1 answer:
Greeley [361]3 years ago
7 0

Answer:

B

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = \frac{1}{2}, thus

y = \frac{1}{2} x + c ← is the partial equation

To find c substitute (- 4, - 9) into the partial equation

- 9 = - 2 + c ⇒ c = - 9 + 2 = - 7

y = \frac{1}{2} x - 7 ← equation of line

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Streak
Monica [59]

Answer: Not 100% sure but this is what I think.

-4/5

Step-by-step explanation:

(5, -1) (15, −9)

1Y - 2Y / 1X - 2X = SLOPE

-1 + 9 / 5 - 15 = 8/-10 = -8/10 = -4/5

7 0
2 years ago
What is 5(y-2)-2=2(y+1)-5? Solve for y and show your work please.
Inessa [10]

Answer:

y = 3

Step-by-step explanation:

Let's start with the left side of the equation.

5(y-2)-2= 2(y+1)-5

5y-10-2= 2(y+1)-5

Now let's solve the right side

5y-10-2= 2y+2-5

5y-12= 2y-3

-2y     -2y

3y-12=-3

   +12 +12

3y = 9

3y/3 = 9/3

y = 3

hope this helps!

4 0
3 years ago
What is 2x – 3 < 7 and 5 – x ≤ 8?
iren2701 [21]

Answer:

\begin{bmatrix}x

Step-by-step explanation:

2x -3 < 7 \\ 5 - x \leq  8\\\\\mathrm{Isolate}\:x\:\mathrm{for}\:2x-3

7 0
3 years ago
Read 2 more answers
Why should you record a one in the tens column when regrouping in addition?
ICE Princess25 [194]
To keep the place holder
5 0
2 years ago
Help me pls pls pls pls pls
Oxana [17]

Answer:

B.x>4is a required interval.

5 0
3 years ago
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