TEXES CORE SUBJECTS &
GENERALIST EC-6 REVIEW MATH
2025 QUESTIONS AND ANSWERS
function - ....ANSWER ...-A relationship from one set (called the domain) to
another set (called the range) that assigns to each element of the domain exactly
one element of the range
domain ( in a function) - ....ANSWER ...-the first number/element in a set
of ordered pairs, in (2,5) 2 is a member of the domain; in (x,y) x is a member of the
domain
In a set of ordered pairs each member of the domain must have only one partner
in the range to be a function.
range (in a function) - ....ANSWER ...-the second number/element in a set
of ordered pairs, in (2,5) 5 is a member of the range; in (x,y) y is a member of the
range
ways to represent functions - ....ANSWER ...-as a set of ordered pairs
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,on a T chart (2 column table)
by having two sets (domain and range) and drawing a line connecting each member
of the domain with a member of the range
by a number equation ex. f(x) = x+2 = y
by charting the set of ordered pairs on a grid (uses the x and y axis to chart)
common denominator - ....ANSWER ...-1/4 & 3/4 have a common
denominator (4).
A denominator that is the same in two or more fractions; two or more fractions
having the same denominator.
least common multiple (LCM)
least common denominator (LCD) - ....ANSWER ...-LCM is the smallest
number that two or more numbers can be divided into; least common multiple of
the denominators of two or more fractions is needed to add fractions.
Multiples of 3: 3,6,9,12,15
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, Multiples of 5: 5,10,15,20,25
15 is least common multiple (LCM) and therefore the least common denominator
(LCD) of 1/3 and 1/5 is 15 so you convert:
1/3 = 5/15
1/5 = 3/15
ratio - ....ANSWER ...-the quotient of two numbers or quantities showing
the relative sizes two numbers or quantities 3/4 or 3:4
3:4 could be used to express 3 girls for every 4 boys
percent - ....ANSWER ...-ratio where quantity is compared to a hundred
parts 1/2 = x/100 = 50%
rate - ....ANSWER ...-A ratio of two numbers measured in different units.
ex. $ 3.49 a gallon; 55 miles an hour
proportion - ....ANSWER ...-The relationship of one thing to another in
size, amount, etc. Size or weight relationships among structures or among elements
in a single structure. An equation stating that two ratios are equal.
ex. a/b = c/d can also be written a:b c:d
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
GENERALIST EC-6 REVIEW MATH
2025 QUESTIONS AND ANSWERS
function - ....ANSWER ...-A relationship from one set (called the domain) to
another set (called the range) that assigns to each element of the domain exactly
one element of the range
domain ( in a function) - ....ANSWER ...-the first number/element in a set
of ordered pairs, in (2,5) 2 is a member of the domain; in (x,y) x is a member of the
domain
In a set of ordered pairs each member of the domain must have only one partner
in the range to be a function.
range (in a function) - ....ANSWER ...-the second number/element in a set
of ordered pairs, in (2,5) 5 is a member of the range; in (x,y) y is a member of the
range
ways to represent functions - ....ANSWER ...-as a set of ordered pairs
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,on a T chart (2 column table)
by having two sets (domain and range) and drawing a line connecting each member
of the domain with a member of the range
by a number equation ex. f(x) = x+2 = y
by charting the set of ordered pairs on a grid (uses the x and y axis to chart)
common denominator - ....ANSWER ...-1/4 & 3/4 have a common
denominator (4).
A denominator that is the same in two or more fractions; two or more fractions
having the same denominator.
least common multiple (LCM)
least common denominator (LCD) - ....ANSWER ...-LCM is the smallest
number that two or more numbers can be divided into; least common multiple of
the denominators of two or more fractions is needed to add fractions.
Multiples of 3: 3,6,9,12,15
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
, Multiples of 5: 5,10,15,20,25
15 is least common multiple (LCM) and therefore the least common denominator
(LCD) of 1/3 and 1/5 is 15 so you convert:
1/3 = 5/15
1/5 = 3/15
ratio - ....ANSWER ...-the quotient of two numbers or quantities showing
the relative sizes two numbers or quantities 3/4 or 3:4
3:4 could be used to express 3 girls for every 4 boys
percent - ....ANSWER ...-ratio where quantity is compared to a hundred
parts 1/2 = x/100 = 50%
rate - ....ANSWER ...-A ratio of two numbers measured in different units.
ex. $ 3.49 a gallon; 55 miles an hour
proportion - ....ANSWER ...-The relationship of one thing to another in
size, amount, etc. Size or weight relationships among structures or among elements
in a single structure. An equation stating that two ratios are equal.
ex. a/b = c/d can also be written a:b c:d
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
