Write a rule/equation for each of the lines

For the line that has a positive slope, the equation is y = 2x - 1

This is because slope is rise over run(rise/run) or m = y₂-y₁ / x₂-x₁. The line goes up(rise) 2 units, and goes to the right(run) by 1 unit.

The y-intercept(the point the line touches when x = 0) is -1.

You use the equation y = mx + b, try to find m and b(y-intercept) and plug it into the equation.

For the line that has a negative slope, the equation is y = -x + 5

x=9

step-by-step explanation:

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step-by-step explanation: