Keystone Exams: Algebra I Assessment Anchors and Eligible Content
Keystone Exams: Algebra I Assessment Anchors and Eligible Content
Keystone Exams: Algebra I Assessment Anchors and Eligible Content
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KEYSTONE<br />
ALGEBRA I<br />
SAMPLER<br />
Information About <strong>Algebra</strong> I<br />
FORMULA SHEET<br />
Formulas that you may need to work questions in this sampler are found below.<br />
You may use calculator π or the number 3.14.<br />
Arithmetic Properties<br />
w<br />
A = lw<br />
Additive Inverse: a + (ˉa) = 0<br />
l<br />
1<br />
Multiplicative Inverse: a · = 1<br />
a<br />
h<br />
V = lwh<br />
Commutative Property:<br />
a + b = b + a<br />
a · b = b · a<br />
l<br />
w<br />
Associative Property: (a + b) + c = a + (b + c)<br />
(a · b) · c = a · (b · c)<br />
Linear Equations<br />
Identity Property:<br />
a + 0 = a<br />
a · 1 = a<br />
y 2<br />
Slope: m =<br />
– y 1<br />
x 2 – x 1<br />
Point-Slope Formula: (y – y 1 ) = m(x – x 1 )<br />
Distributive Property:<br />
a · (b + c) = a · b + a · c<br />
Multiplicative Property of Zero: a · 0 = 0<br />
Slope-Intercept Formula:<br />
y = mx + b<br />
Additive Property of Equality:<br />
If a = b, then a + c = b + c<br />
St<strong>and</strong>ard Equation of a Line:<br />
Ax + By = C<br />
Multiplicative Property of Equality:<br />
If a = b, then a · c = b · c<br />
Pennsylvania <strong>Keystone</strong> <strong>Algebra</strong> I Item Sampler 2011 6
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