Equations of lines on coordinate plane math homework help

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The task is to check answers for questions #1, 2, 3, 4, 5, and 7 to verify they are correct and then supply the answer for question #6.

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Answers

1. m=5

2. m= -2

3. y=8x+10

4. y=4x-9

5. In the slope intercept form, a straight line of the coordinate plane can be described as y = m x +b, where m is the slope and b is the intercept and the slope of a line measures how much the value of y changes for every so much that the value of x changes.  Since the slope is the number represented by m multiplied on the “x” and the y-intercept is the value of b, it makes sense to name it the slope intercept form. 

6.

7. The classmate made the mistake for substituting the “X” values in the formula where the “y” values should be.  the formula for finding the slope of a line passing through points is:

m = y2-y1/ x2-x1 when substituting the values into the formula it should read:

m = 10-(-2) / 8-8

m = 12 /0

m = 0

 
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