Linear
y = 3x - 4
What is the slope and y-intercept?
y = 3x - 4
What is the slope and y-intercept?
slope = 3
y-intercept = -4
What is the general form of a quadratic equation?
What is the general form of a quadratic equation?
y = Ax2 + Bx + C
The standard equation of a circle is....
The standard equation of a circle is....
(x - h)2 + (y - k)2 = r2
Food:
_ _ _ _ _
JERKY
A line contains points at (2, 6) and (4, 11). What is the equation of the line in slope-intercept form?
A line contains points at (2, 6) and (4, 11). What is the equation of the line in slope-intercept form?
y = 2.5x + 1
Factor x2 - 4x - 32
Factor x2 - 4x - 32
(x - 8)(x + 4)
The distance around a circle is its __________
The radius is one-half of the ________
The distance around a circle is its circumference
The radius is one-half of the diameter
Animal:
_ _ _ _ _ _ _ _
KANGAROO
In addition to slope-intercept form, linear equations may also appear in _________ form. What is this form and its equation?
In addition to slope-intercept form, linear equations may also appear in point-slope form. What is this form and its equation? y - y1 = m(x - x1)
Factor 4x2 + 8x - 60
Factor 4x2 + 8x - 60
4(x2 + 2x - 15)
4(x + 5)(x - 3)
What is the center and radius?
(x + 6)2 + (y - 8)2 = 15
What is the center and radius?
(x + 6)2 + (y - 8)2 = 15
center = (-6, 8)
radius = sqrt(15)
y = 3x - 2
Give the equation of a line that's perpendicular to y and goes through the point (0, 1)
y = 3x - 2
Give the equation of a line that's perpendicular to y and goes through the point (0, 1)
y = (-1/3)x + 1
Find the vertex:
x2 - x - 6
Write in vertex form by completing the square:
x2 - x - 6 = 0
(x - 1/2)2 = 25/4
(x - 1/2)2 - 25/4
vertex: (1/2, -25/4)
If the longest side of a 30-60-90 triangle is 1, what is the middle side length?
2x = 1, so x = 1/2
middle side = x*sqrt(3) = (1/2)*sqrt(3)
= sqrt(3)/2