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(4x-4) (3x+17)

The lines. intersect at point C. What is the value of X?

(4x-4) (3x+17) The lines. intersect at point C. What is the value of X?-example-1

2 Answers

4 votes

For this case we must find the value of "x":

We have that, by definition:


4x-4 = 3x + 17

Because they are opposite the vertex.

Then, subtracting
3x on both sides we have:


4x-3x-4 = 3x-3x + 17\\x-4 = 17

Adding 4 to both sides:


x = 17 + 4\\x = 21

So, the value of x is 21

Answer:


x = 21

User Ariel Vardi
by
6.7k points
6 votes

Answer:

(21, 80)

Explanation:

We have the two lines y = 4x -4 and y = 3x + 17. The point 'C' will be given by the interception of them, as follows:

4x -4 = 3x + 17

Solving for 'x':

x = 21

Now, to find 'y' we have:

y = 4(21) -4 = 80

Therefore, they intercept at: (21, 80)

User Deppfx
by
7.3k points