Equations and Equality
Substitution
Factor Fiction
Mathin" N Graphin
Exponents
100
Three Biscuits cost $45 How much is each biscuit?
What is $15
100
Whic pair IS a solution to 2x + y > 8 ? a) (3,2) b) (6,-2) c) (1,6)
What is b) (6,-2)
100
Factor x^2 -12x + 36 a) (x + 6)(x + 6) b) (x - 6)(x - 6) c) (x - 6)(x + 6)
What is b) (x - 6)(x - 6) (-6)(-6)=36 and adds up to -12, the middle term
100
How does the parabola (bowl-shaped curve) of this equation open, and is the vertex a maximum or a minimum? y = -3x^2 +22x + 100 a) up, vertex, maximum b) down, vertex minimum c) down, vertex maximum
What is c) down, vertex maximum The negative in -3x^2 tells you it frowns down
100
rewrite (xy)(xy)(xy) a) 3xy b) 3xy^3 c) x^3y^3
What is c) x^3y^3 exponents tell how many times you multiply x and y by themselves
200
What is the equation of the line passing through (0,2) with a slope of 4? a) y=4x b) y=4x - 2 c) y=4x +2
What is c) y= 4x + 2
200
(hydrogen)*(oxygen)*(hygrogen) tossed in the freezer makes what???
What is ICE water frozen is ICE
200
Where is the axis of symmetry of this equation? (use x= -b/2a) x^2 + 8x -9 a) x = -4 b) x = +4 c) x = -8
What is a) x = -4 x = -b/2a = -(8)/2(1) = -8/2 = -4
200
(x^3)^2 or in words x cubed raised to the second power a) x^6 b) x^5 c) x^1
What is a) x^6 when you raise a power to a pwer, MULTIPLY powers
300
Absolute value |3m| = 21 find BOTH solutions
What is 7 and -7
300
If you substitute the letter o for the letter e in the word teeth, how many teeth would you have?
What is one (tooth)
300
Factor 3x^2 + 11x + 10 a) (x + 10)(x + 1) b) (3x + 2)(x + 9) c) (3x +5)(x + 2)
What is c) (3x +5)(x + 2)
300
Given the factors (2x + 7)(x -3) find the original trinomial a) 2x^2 - 4x -21 b) 2x^2 + 21x +21 c) 2x^2 + x -21
What is c) 2x^2 + x -21
300
5^-2 equals a) 25 b) 1/25 c) 1/10
What is b) 1/25 a negative exponent means the power is in the denominator
400
Solve 5x^2 = 45
What is 3 or -3
400
What is the solution to this system? x + 3y = 2 2x - y = 11 a) (5, -1) b) (2, 0) c) (2,11)
What is a) (5, -1) x + 3y = 2 5 + 3(-1)=2
400
Factor 10xy^3 completely a) 2 * 5 * x * y * y * y b) 10 *x * y * y * y c) 2 * 5 * x * y
What is a) 2 * 5 * x * y * y * y
400
The x-intercept is: a) where a graph hits the x-axis b) where a graph hits the y-axis c) always the vertex
What is a) where a graph hits the x-axis Intercept and INTERSECT have similar meanings
400
c*o*m^2*i*t^2*e^2 in expanded form spells what word?
What is COMMITTEE
500
Absolute value |2m -5| = 9
What is 7 and -2
500
Which IS a solution to -3x +y < 2 a) (0,3) b) (-4,-4) c) ( 5, -1)
What is c) (5, -1) -3x + y < 2 -3(5) + (-1) < 2 -15 + -1 equals -16
500
What is the GCF of 40abc and 24ad
What is 8a
500
Which equation has a negative slope AND hits the y axis between 3 and 6? a) y = 4x - 5 b) y = -3x + 7 c) y = -2x + 4
What is c) y = -2x + 4 slope is -2 y-intercept is +4
500
(2^-3)^2 the quantity (2 to the negative third power) squared a) -16 b) 1/64 c) 1/32
What is b) 1/64 2^-3 is 1/2^3 or 1/8 1/8 times 1/8 is 1/64
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