Spot the m and b
What is the slope of y = 4x + 7?
4
Write the equation: slope 2, y-intercept 3
y = 2x + 3
Write the point-slope form formula
y - y1 = m(x - x1)
Find the slope of the line through (1, 2) and (3, 8)
3
Who is your favourite teacher?
Any teacher's name counts!
What is the y-intercept of y = -2x + 5?
5, the point (0, 5)
Write the equation: slope -1, y-intercept 0
y = -x
Name the slope and the point: y - 3 = 5(x - 1)
slope 5, point (1, 3)
Rewrite in slope-intercept form: y - 2 = 3(x - 1)
y = 3x - 1
When is the last day of school for students?
June 17th
Name the slope and y-intercept of y = (1/3)x - 6
slope 1/3, y-intercept -6
Write the equation: slope 3/4, passes through (0, -2)
y = (3/4)x - 2
What point is on the line y + 4 = -2(x - 6)?
(6, -4)
Write in point-slope form: the line through (-1, 3) and (2, -3)
y - 3 = -2(x + 1) or y + 3 = -2(x - 2)
What is Dr. Aihab's most famous repeated word?
Smarty
What is the slope of y = 9 - 5x?
-5
Write the equation: slope -2, passes through (3, 1)
y = -2x + 7
Write in point-slope form: passes through (2, -5) with slope 3
y + 5 = 3(x - 2)
A taxi charges 0.250 KD per km. A 6 km ride costs 2.000 KD. Write the point-slope equation.
y - 2 = 0.25(x - 6)
How many math teachers are in the HUBS math department?
14 teachers
A water tank's level in litres is modeled by y = 120 - 8x, where x is minutes. What are the slope and y-intercept, and what does each mean?
Slope -8: the tank loses 8 L per minute. Y-intercept 120: it starts with 120 L.
Sara has 15 KD saved and adds 4 KD every week. Write an equation for her savings y after x weeks, then find how much she has after 6 weeks.
y = 4x + 15; 39 KD after 6 weeks
A plant is 8 cm tall after 2 weeks and grows 3 cm every week. Write a point-slope equation for its height y after x weeks. What was the plant's original height?
y - 8 = 3(x - 2), which is y = 3x + 2; original height 2 cm
Using the same taxi (y - 2 = 0.25(x - 6)), how much does a 20 km ride cost?
5.500 KD (y = 0.25x + 0.5)
How many classes of grades 4-12 (boys & girls) does HUBS have?
53 (accept 50-56)