Question

If a line crosses the y-axis at (0, -4) and has a slope of -2, what is the equation of the line?


2x − y = -4


2x + y = -4


2x + y = 4


2x − y = 4

Answer 1

have you heard of slope-intercept form ? y = mx + b
where m is the slope and b is the y-intercept (y value when x is 0)

they give you m and b, so you can write down the equation.
then use algebra to put the equation in standard form (to match your choices)