A
5x = 10, Given
x = 2, which property?
5x = 10, Given
x = 2, division property of equality
x + 4 = 10, given
x = 6, which property?
x + 4 = 10, given
x = 6, subtraction property of equality
a = a, which property?
a = a, reflexive property of equaility
0.5(x + 3) = 10, given
x + 3 = 20, which property?
0.5(x + 3) = 10, given
x + 3 = 20, division property of equality
f(x) = x2 - x - 72
What are the solutions to f(x) = 0?
f(x) = x2 - x - 72
What are the solutions to f(x) = 0?
(x - 9)(x + 8)
x = -8, 9
a) y = 2x + 3
b) 2y = 4x + 3
c) 2x = y - 3
Identify any parallel or perpendicular lines
a) y = 2x + 3
b) 2y = 4x + 3
c) 2x = y - 3
a and c are parallel with b (a and c are the same line)
line p has a slope of -2 and a point at (1, 5). What is its y-intercept?
line p has a slope of -2 and a point at (1, 5). What is its y-intercept?
(0, 7)
line q has a point at (-2, 3) and (3, 13). Write an equation for line q using slope-intercept form.
line q has a point at (-2, 3) and (3, 13). Write an equation for line q using slope-intercept form.
y = 2x + 7
line g has a y-intercept at (0, 5) and a point at (3, -10). What is its slope?
line g has a y-intercept at (0, 5) and a point at (3, -10). What is its slope?
y = -5x + 5
f(x) = 2x2 - 2x - 40
What are the solutions to f(x) = 0?
f(x) = 2x2 - 2x - 40
What are the solutions to f(x) = 0?
x = -4, 5
What is the sum of the interior angles of a pentagon?
What is the sum of the interior angles of a pentagon?
(5-2) * 180 = 540 degrees
What is the measure of a single interior angle of a regular pentagon?
What is the measure of a single interior angle of a regular pentagon?
(5 - 2)(180) = 540
540 / 5 = 108 degrees
How many solutions do these equations have?
y = (x - 3)2 - 2
y = -4
Options: 0, 1, 2, infinite
How many solutions do these equations have?
y = (x - 3)2 - 2
y = -4
Options: 0, 1, 2, infinite ----> 0 solutions
How many solutions do these equations have?
y = x2 - 2x - 24
y = 10
Options: 0, 1, 2, infinite
How many solutions do these equations have?
y = x2 - 2x - 24
y = 10
Options: 0, 1, 2, infinite ---> 2 solutions
f(x) = x2 - x - 72
Where is the vertex located?
f(x) = x2 - x - 72
Where is the vertex located?
(1/2, -72.25)