Word Problems
A stone is tossed in the air... the equation
s(t)= -4.9(x-2)2+78.4
represents the stones height, at any given time, t.
A reasonable Range would be...
0 ≤ y ≤ 78.4
The x intercepts of the function
y = 2x2 - 4x - 30
what are -3 and 5
Solve for x
x2 - 12x + 32 = 0
what are 4 and 8
the function g(x) = (x+3)2 - 1
written in standard form
What is g(x) = x2 + 6x + 8
The vertex form equation for a quadratic that was reflected over the x-axis and translated left 3 and up 7.
A manufacturer of lighting fixtures has daily costs modeled by
y= 0.25x2-10x+800
y is the cost in dollars and x is the number of fixtures produced.
The minimum daily production cost...
What is $700
The axis of symmetry of the function
y= 2x2 +12x +32
what is x = -3
The solutions of
8x2 + 5x - 4 = 2x2 - 8x + 1
solutions written in fraction form
What are 1/3 and -5/2
The function d(x) = 5x2 - 10x + 12
written in vertex form
what is. d(x) = 5 (x - 1)2 +7
The intercept form of a quadratic that has x intercepts at 3 and -3 and passes through the point (1, 2).
What is y = -1/4 (x - 3) (x + 3)
A projectile is launched into the air. The function
h(x)=-16x2+32x+400
gives the height, h, in feet, of the projectile t seconds after it is launched.
The approximate number of seconds for the projectile to land back on the ground...
What is 6 seconds
The y-intercept of the function
y= 3 (x-4)2 +10
what is (0, 58)
The solutions of
0 = x2 - 4x + 10
Solutions should be in simplest radical form is necessary.
what is
2 plus/minus i sqrt(6)
What is the function
g(x) = -3x2 -15x + 42
written in intercept form
what is g(x) = -3 (x+7) (x-2)
write the vertex form equation of the function that has a vertex at ( -2, 40) and has a y-intercept of 30
what is y= -5/2 (x+2)2 +40
A projectile is shot into the air, the function
f(x)= -3x2+42x-99
represents it's height over time in seconds.
The interval that represents the object falling back to earth...
what is (7, 11]
The graph
f(x)= 9x2 - 6x + 5
has how many x-intercepts
What is none
The solutions, written is simplest radical form, for the equation
25x2 - 10x + 2 = 0
What are
1 plus/minus i
____________
5
The function
h(x) = - 1/2 (x+6)2 -8
written in Standard form
What is h(x) = - 1/2 x2 - 6x -26
what is y = 2x2 -6
The area of a square coffee table can be represented by the function y=9x2+12x+4...
Write an expression in terms of x to represent the tables perimeter.
12x+8
The x intercepts of the function
g(x) = 2x2 - 12x
what is 0 and 6
the solutions of the equation in simplest form
4x2 - 4x = 11
What is
1 plus/minus 2 sqrt(3)
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2
The function
y= -3x2 -18x +11
written in vertex form.
what is y = -3 (x+3)2 + 38
The standard form equation of a quadratic that has a vertex of ( 1, 2) and passes through the point ( 2, -5)
what is y = -7x2 + 14x -5