Hadi B. answered • 16d

BS in Mathematics with 5+ years of tutoring experience

the basic equation of a line is y = mx + b, where m is the slope and b is the y-intercept

replace m in the equation with 2 since that is the slope given

so, we have y = 2x + b

since (1,-4) is contained on the line, we can substitute this for x and y in the equation and solve for b

y = 2x + b

-4 = 2(1) + b

-4 = 2 + b

-6 = b

plug b into the equation

y = 2x + b

y = 2x - 6

Rylee O.

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