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Absolute value
distance the number is from 0 (trick: make it positive)
-5 + 8 = ? (no calculator!)
3
What is a rational number?
A number that can be expressed as a fraction
Simplify:
3s + 3 + 2s - 9 = ?
5s - 6
Solve:
2x - 7 = -6
x = 1/2
Solve:
(2/3)x = 266
x = 399
What is the area of a rectangle with a width of 3w and a length of 4?
A = l x w
A = 12w
Solve:
15n - 25 > 150
n >11.67
What is "slope intercept form"?
y = m x + b
What does the "b" represent in y = m x + b?
y intercept/ starting point/ initial value
What does the "m" represent in the equation y = m x + b?
Slope, rate of change, rise/ run
Lily paid $6 for 3/8 lb of nuts. What is the cost of 1 lb?
$16
How can you solve a proportion?
cross multiply, then divide/ butterfly method
Find the area of a triangle with a base of 3cm and a height of 8cm.
(1/2) 3 x 8 = 12 cm squared
Area is measured in what type of units?
squared
Perimeter is measured in what type of units?
cm, m, inches (not squared or cubed)
