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Maslowich
3 years ago
12

I need help with this, I've never really understood linear stuff.

Mathematics
2 answers:
Alborosie3 years ago
8 0

OK; there's another answer but I haven't peeked.

y = -3 x + 7

A(4,-5): -3(4)+7=-12+7=-5 (4,-5) is on the line

B(4 ,19) . We got y=-5 when x=4 so this one isn't on the line.

C(1, 5) : -3(1)+7=4 not 5, not on the line

D(1, -19) : Still 4 not -19, not on the line

Answer: A

KonstantinChe [14]3 years ago
4 0

You have several possible points (x,y). Any point that lies on the given line will have a y value that you obtain by plugging in the corresponding value of x into the equation of the line.

The line has equation y=-3x+7, so any point on the line will have the form (x,-3x+7).

Among the four given points, there are only 2 different values of x to check. We have

x=4\implies y=-3(4)+7=-12+7=-5

x=1\implies y=-3(1)+7=-3+7=4

which means the given line contains the points (4, -5) and (1, 4). So the answer is A.

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konstantin123 [22]

Answer:

A. -2

Step-by-step explanation:

-25p - 2 = 48

First, add 2 to both sides

That gives you

-25p = 50

Then, divide both sides by -25. Then that leaves the answer.. p = -2

5 0
2 years ago
Y = –x + 4
aliina [53]
Y = -x + 4.....so sub in -x + 4 in for y in the other equation

x + 2y = -8
x + 2(-x + 4) = -8
x - 2x + 8 = -8
x - 2x = -8 - 8
-x = -16
x = 16

y = -x + 4
y = -16 + 4
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one solution (16,-12)
8 0
3 years ago
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Ghella [55]
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5 0
3 years ago
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Drag each tile to the correct box.
wlad13 [49]

The correct match of each tile of the equation with its solution is:

  • n - 13 = - 12 →→→ 1
  • n/5 = -1/5  →→→ -1
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<h3>How do we match each tile to the correct box?</h3>

To match each tile to the correct box, we have to solve the arithmetic operations in the box, then drag the correct tile that matches our answer into the box.

From the image attached below;

1.

n - 13 = - 12

Let us add (+13) to both sides to eliminate (-13), i.e.

n - 13 + 13 = - 12 + 13

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2.

n/5 = -1/5  

multiply both side by 5

n/5 × (5) = -1/5 × (5)

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3.

n + 15 = - 10

n +15 - 15 = - 10 - 15

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7 0
1 year ago
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We also have vertically opposite angles, since the angle sum of a straight line is 180°. We have perpendicular lines since we are given a 90° angle. Thus, we know the missing angle is 45°.

Thus, 45 + x = 180
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2 years ago
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