1 Find the slope of the line through the points 12 and 30 2W

1) Find the slope of the line through the points (1,2) and (3,0).

2)Write the equation for the line with slope 3 and y-intercept 7

3)

Solution

1)

getting the slope,

m = (x2-x1)/(y2-y1) = (0-2)/(3-(-1)) = -1/2 or -0.5 [ANSWER]

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2)

As

y = mx + b

where m =slope, b = y intercept, then

y = -3x + 7 [ANSWER]