----------------------------------------------------------- Make y the subject : ----------------------------------------------------------- y - 3 = 4(x + 8) y - 3 = 4x + 32 // Apply distributive property y = 4x + 35 // Add 3 to both sides
----------------------------------------------------------- Find a point on the line : ----------------------------------------------------------- When x = 0, y = 4(0) + 35 // Sub x = 0 into the equation y = 35 // Combine like terms Point = (0, 35)
----------------------------------------------------------- Answers : (a) Slope = 4 (b) One point on the line is (0, 35) -----------------------------------------------------------
Kelby drank 168 glasses of water per week i.e 24 glasses per day
Since 8 eight-ounce glass of water is for every 50 pounds. 1 eight-ounce glass is for = 50/8 pounds and 24 glasses of water is for = 50*24/8 = 150pounds
