For what value of b will the line joining points p and q be parallel to the y-axis p(5b-1,8) q(9,-7)

The value of b would have to be 2.

Step-by-step explanation:

In order to find this value, we need to note that in order for this line to be parallel to the y-axis, the x values must be equal. So we can set the variable x value in the first ordered pair equal to the x value in the second.

5b - 1 = 9

5b = 10

b = 2

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here is your answer

there are two angles that are alternate interior angle with angle 9

the angle 15 and angle 7 are alternate interior angle with angle 9.

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the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents