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STAAR ALGEBRA I STAAR REFERENCE MATERIALS
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STAAR ALGEBRA I STAAR REFERENCE MATERIALS
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2015–2016 FACTORING. 1) + b) m. k. STAAR ALGEBRA I REFERENCE MATERIALS. State of Texas Assessments of Academic Readiness. STAAR ® Perfect square trinomials
STAAR
STAAR ALGEBRA I REFERENCE MATERIALS
®
State of Texas Assessments of Academic Readiness
FACTORING a2 + 2ab + b2 = (a + b)2
Perfect square trinomials
a2 − 2ab + b2 = (a − b)2 a2 − b2 = (a − b)(a + b)
Difference of squares
6
PROPERTIES OF EXPONENTS
am an = a(m + n)
Product of powers
01
am
Quotient of powers
an
(am)n = amn
Power of a power
m
Rational exponent
LINEAR EQUATIONS
15
Standard form
an =
–2
Negative exponent
= a(m − n)
−n
a
=
n
am
1 an
Ax + By = C y = mx + b
Point-slope form
y − y1 = m(x − x1)
Slope of a line
m =
20
Slope-intercept form
y2 − y1
x2 − x1
QUADRATIC EQUATIONS
Standard form
f ( x ) = ax 2 + bx + c
Vertex form
f ( x) = a( x − h)2 + k
Quadratic formula
x =
Axis of symmetry
x =
−b
2
b − 4 ac 2a
−b 2a
×
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