What is an equation for the line that passes through points (–1, –4) and (1, 4)? Write the equation in slope-intercept form.
the most I know is that I believe you use the formula y=mx+b
I just have trouble actually solving it. Help please and thank you?

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(y-y1)/(y2-y1)=(x-x1)/(x2-x1)

you cant use y=mx+b
because you dont know b (y intercept)

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