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anzhelika [568]
2 years ago
8

Select all of the following points that lie on the graph of f(x) = 7 - 3x.

Mathematics
2 answers:
Natali5045456 [20]2 years ago
7 0

Answer:  The correct options are

(B) (-1, 10)

(C) (0, 7)

(E) (2, 1).

Step-by-step explanation:  We are given to select all the points that lie on the graph of the following function :

f(x)=7-3x~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

<u><em>Option (A) :</em></u>  (x, f(x)) = (-2, 1).

We have

f(-2)=7-3\times(-2)=7+6=13\neq 1.

So, the point (-2, 1) does not lie on the graph of equation (i).

Option (A) is incorrect.

<u><em>Option (B) :</em></u>  (x, f(x)) = (-1, 10).

We have

f(-1)=7-3\times(-1)=7+3=10.

So, the point (-2, 1) lie on the graph of equation (i).

Option (B) is correct.

<u><em>Option (C) :</em></u>  (x, f(x)) = (0, 7).

We have

f(0)=7-3\times0=7-0=7.

So, the point (0, 7) lie on the graph of equation (i).

Option (C) is correct.

<u><em>Option (D) :</em></u>  (x, f(x)) = (1, 5).

We have

f(1)=7-3\times1=7-3=4\neq 5.

So, the point (1, 5) does not lie on the graph of equation (i).

Option (D) is incorrect.

<u><em>Option (E) :</em></u>  (x, f(x)) = (2, 1).

We have

f(2)=7-3\times(2)=7-6=1.

So, the point (2, 1) lie on the graph of equation (i).

Option (E) is correct.

Thus, options (B), (C) and (E) are correct.

Mila [183]2 years ago
6 0

Answer:

All of the points lie on the graph except for the coordinates (-2,1) and (1,5)

Step-by-step explanation:

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AleksandrR [38]

Answer:

The point is at about (4.5, 100).

Step-by-step explanation:

Minka's line is p = 22t, which has a y-intercept of 0.

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Find the line with y-intercept at 0 and the line with y-intercept at 50. Follow the two lines until they intersect. The point of intersection is about (4.5, 100).

You can find this point by setting the two equations equal to each other:

22t = 50 + 11t

Subtract 11t from both sides.

11t = 50

t = 50/11 ≈ 4.545

Then you can find the p value for this point by plugging t = 4.545 into either equation.

p = 22(4.545) = 99.99

p = 50 + 11(4.545) = 99.995

On the graph the point is about (4.5, 100).

5 0
3 years ago
Select the property of equality used to arrive at the conclusion. If x - 3 = 7, then x = 10
goldenfox [79]
X - 3 = 7
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addition property of equality
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Awnswr: 21* because 7 x =y and y= 21
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