1760 yards in a mile.
1760 yards in a mile.
1760 yards in a mile.
1760 yards in a mile.
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the answer is: (y-b)/x = m y = mx + b y - b = mx (y-b)/x = m
It's 2. your equation is y=mx+b, so the gradient, or slope, is the "m" in the equation.
Use the point-slope form: y - y1 = m(x - x1). From the givens, y1 = 2, x1 = 9, and m = -2. Thus, y - 2 = -2(x - 9) = -2x + 18, or y = -2x + 20.
The x in y=mx+b is the independent variable. You could solve for x, making this a function of y, with simple algebra. y = mx + b y - b = mx (y-b)/m = x
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