Order of Operations
8 + 4 x 2
16
How is the radius related to the diameter?
Radius is half of diameter.
Diameter is twice the radius.
x + 4 = 12
x = 8
The type of dot you draw for >
Open dot
What is the slope of y = 3/4x + 5
3/4
(8 + 4) x 2
24
Find the constant of proportionality:
x y
2 8
3 12
4 16
k = 4
x/5 = -4
x = -20
Draw a number line for x < -2
(students should have an open dot at -2 with an arrow pointing to the left/towards the negative numbers)
What direction is this line going in: -3x + 8
down (negative slope)
3^2 + 6 x 2
21
Find x: 8/3=24/x
x = 9
3x - 7 = 2
x = 3
(bonus if you draw a number line)
x >= 8
What is the y-intercept of the line y = -3x
(0, 0) or b = 0
12/3 + 2 x (5 - 1)
12
What is the circumference of a circle with a diameter of 7in?
C = 21.98in
8 + x/2 = 4
x = -8
Solve: 2x - 5 < 17
x < 11
What is the equation of a line with a y-intercept at -4 and a slope of 3?
y = 3x - 4
2^2 + (3 - 5) x 4
-4
What is the area of a circle with a radius of 4in?
A = 50.24in squared
3(2x - 4) = 24
x = 6
Solve: -8 - 2x > 4
x < -6
Find the slope between the points (8, 3) and (6, 11)
m = 8/-2 or 4/-1 or -4