Question

A line with a slope of −5 passes through the point (4, 8).

Answer 1

the slope intercept form is y = mx + b m = slope and b = y intercept

so the line is y = -5x + b

to find the value of b, substitute the values of x and y from the point.

Answer 2

y = -5x + b
8 = -5(4) + b
8 = -20 + b
28 = b
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y = -5x + 28