linear equations
DESCRIPTION
Lesson 3. Linear Equations. The Distributive Property. Warm-Up. State whether the equation is true or not with the given values. 6 x – 4 y = 22 when x = 5 and y = 2 x + 5 = y when x = 6 and y = 11 y = – 3 x – 1 when x = – 2 and y = – 7. The Distributive Property. - PowerPoint PPT PresentationTRANSCRIPT
State whether the equation is true or not with the given values.
1. 6x – 4y = 22 when x = 5 and y = 2
2. x + 5 = y when x = 6 and y = 11
3. y = – 3x – 1 when x = – 2 and y = – 7
2
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Term: A number or the product of a number and a variable.
Constant: Term that has no variable.
Coefficient: The number multiplied by a variable in a term.
Distributive Property: A property that can be used to rewrite an expression without parentheses.
Like Terms: Terms that have the same variable raised to the same power.
Equivalent Expressions: Expressions that have the same value.
Find the product by using the Distributive Property and mental math.
4(103)4(100 + 3)
4(100) + 4(3)400 + 12
412
Find the product by using the Distributive Property and mental math.
998 ∙ 77(1000 – 2)
7(1000) – 7(2)7000 – 14
6986
Find the product by using the Distributive Property and mental math.
8(6.5)8(6 + 0.5)
8(6) + 8(0.5)48 + 4
52