1. Do – Now Just do – don’t copy word problem.
Your family rents a canoe for a deposit of $10 plus $28 per day. Write an equation to model the total cost y of renting a canoe for x days. Use the equation to find the cost of renting a canoe for 3 days.
y = x y = (3) y = $94

2. Plug into y = mx + b to find b
5.2 – Write an equation in slope-intercept form
Remember: y = mx + b
Given: slope & a point
Write an equation of the line that passes through the point (6, –3) and has a slope of –2.
y = –2x + 9
Plug into y = mx + b to find b
Ex1) (2, –3) & m = 2
Ex2) (–3, 2) & m =
y = 2x – 7

3. Parallel lines have same slope!
Remember: y = mx + b
Write an equation of the line that is parallel to the line y = x – 2 and passes through the point (–2, 1).
Ex1) y = x + 4 & (–2, 0)
Ex2) y = –3x + 1 & (4, 2)

4. Perpendicular Lines have negative reciprocal slopes!
Write an equation of the line that is perpendicular to the line y = –3x + 2 & passes through the point (6, 5).
Ex1) y = 2x – 1 & (2, 4)
Ex2) y = x + 2 & (5, 1)
y = 3x – 14