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rjkz [21]
3 years ago
11

Solve the system of equations by graphing. Check your solution. 5x+y=14 2x-y=7

Mathematics
1 answer:
Fudgin [204]3 years ago
6 0
ANSWER

(3,-1)

EXPLANATION

The given system of equations is :

5x+y=14

2x-y=7

For the first equation when x=0,

5(0)+y=14

y=14

The y-intercept is (0,14).

When y=0, 5x+0=14

x = \frac{14}{5} = 2 .8

The x-intercept is (2.8,0).

We plot the intercepts and draw a straight line through them to obtain the graph of 5x+y=14 as shown in the attachment.

We repeat the same process for the second equation 2x-y=7.

The intercepts are (0,-7) and (3.5,0)

The solution to the system is the point of intersection of the two straight lines.

The two straight lines intersected at

(3,-1)

Hence x=2, y=-1

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solve by elimination ie eliminate x or y from the equations by performing operations on them.
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now substitute this value of x into either of the 2 equations and solve for y.
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Step-by-step explanation:

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