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Leya [2.2K]
3 years ago
15

For what value of k will the points of simultaneous equations have no solution?

Mathematics
1 answer:
RSB [31]3 years ago
3 0

Answer:

k = -4.

Step-by-step explanation:

k = -4 because that would produce the system:

y = -4x - 7

y = -4x + 2

y cannot have 2 different values at the same time.

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The graph shows two lines, A and B. A graph is shown with x- and y-axes labeled from 0 to 6 at increments of 1. A straight line
maxonik [38]

there will be one solution because the lines intersect at exactly one set of points.

(0,6)(6,3)
slope(m) = (3-6) / (6-0) = -3/6 = -1/2

y = mx + b
6 = -1/2(0) + b
6 = b
y = -1/2x + 6

(0,0)(6,6)
slope(m) = (6-0) / (6-0) = 6/6 = 1

y = mx + b
6 = 1(6) + b
6 = 6 + b
6 - 6 = b
0 = b

y = x + 0

x = -1/2x + 6
1/2x + x = 6
1/2x + 2/2x = 6
3/2x = 6
x = 6/(3/2)
x = 6 * 2/3
x = 12/3 = 4

<span>solution is : (4,4)</span>
6 0
3 years ago
Solve the system of equations by substitution. 7+2y=8 3x-2y=0
Volgvan
7+2y=8
3x-2y=0

7+2y=8
y=8/3

3x-2(8/3)=0
3x-16/3=0
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8 0
3 years ago
Will give Brainly lollllllll XD......................
marshall27 [118]

Answer:

it looks like it would just be -1

Step-by-step explanation:

there two -x and two positive x which would cancel out. three positive 1 and four negative 1. -4+3= -1

that's the best I could come up with

6 0
2 years ago
Read 2 more answers
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Therefore
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8 0
3 years ago
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4/7 is the simplest form
You can divide 20 by 5 and get 4 and divide 35 by 5 and get 7
4 0
3 years ago
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