1. line goes through the points (9, 10) and (-3, 2). (a) What is the slope of the line? Show your work
slope = (10 - 2)/(9 + 3)
slope = 8/12
slope = 2/3
2. Write the equation of the line in point-slope form.
Show your work
point-slope form.
y - y1 = m(x - x1)
so equation
y - 2 = 2/3(x + 3)
3. Write the equation of the line in slope-intercept form.
Show your work.
slope = 2/3, passing thru (-3, 2)
y = mx + b
b = y - mx
b = 2 - (2/3)(-3)
b = 2 + 2
b = 4
equation
y = 2/3(x) + 4
