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Algebra 1 Freshmen Midterm Answer Key

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Value of Expression,Domain and Range,Expressions, Distrubitiuve Property and Multiplicative Inverse
#1 Value Of Expression a2+2ab+b2 a=6 b=4 100
#2 Domain and Range ( 2,5 ), ( -1,3), ( 0,-1), ( 3,3 ) , ( -4,-2) Domain is x and Range is y
#3 Evaluate Expression 4^3 64
#4 Distrubitive Property 4(3x+7) 12x+28
#5 Multiplicative Inverse of 3 -3
Verbal Expression,f(x), and Equation
#1 Verbal Algebraic Expression " Five less than four times a number" 4x-5
#2 f(x)=4x^2-1 value is 5 f(x)=4x^2-1...4(5^2)-1
#3 Solve Equation 3(2x+6)-4=14 (6x+18)-4=14
#4 f(d)=120+60d Rental is $360 4=d
#5 Solve Equation |2x-7|=9 x=8
Expressions, Verbal, Vocabulary and Percent Decrease
#1 Evaluate Expression |-3b+4 | b=2 10
#2 Translate Sentence " Sum of six and four times a number, d is the same as d minus nine" 6+4d=d-9
#3 Translate into verbal sentence 3x+5y=7 three times a variable plus five a variable equals seven
#4 How to tell if a pair of ratios forms a proportion Cross Product
#5 A men dress shirt was priced at $60 ans is now on sale for $53. What is the percent decrease in the shirt price -11.7%
Sequence, Function, Coeffiecent, Variation and Arthimetic Sequence
#1 Sequence represent Alg. expression 4n+5 9,13,17,21,.....
#2 Watermelons are $4 plus $0.25, write a function f(x)=4+0.25x
#3 Coeffiecent A, B and C must be what type of numbers Intergers and non negatives
#4 Suppose y varies as x, constant of variation is 3 value of y x=12 y=3(12) = 36
#5 Arthimetic Sequence 5,9,11,15,.... value of 4 Common Difference
Linear Slope, Equation slope intercept,Consecutive intergers, sequence and data set
#1 Linear Slope 4/7 opp. reciprocal -7/4
#2 Write equation y+4=2(x-6) in slope intercept form y=2x-16
#3 Two Consecutive intergers is 15 x=7 x+1= 8
#4 Type of sequence 2,4,8,16,..... Geometric
#5 Set of data is plotted, which type is a strong positive correlation A- -0.999 B- 0.864
Final Question
Varies directly...189 potatoes from 9 plants...how many potatoes will be harvested if 14 are plantes this year? y=294