Fun with Equations
Solve: 4x + 7 = 31
x = 6
Is this a function: {(1, 2), (2, 3), (2, 4)}
No
Algebra: What is the slope-intercept form of a linear equation
Algebra: y = mx + b
Find the x- and y-intercept of the
line 2x + 3y = –18
x-intercept is –9; y-intercept is –6.
A shape that has 6 sides is called
Hexagon
Solve: 2(3x - 4) = 34
x = 7
These two lines are like railroad tracks and will never intersect no matter how far they go.
parallel lines
Algebra: What is the Standard form of a linear equation:
Ax + By = C
What does b represent in the slope intercept formula?
y-intercept
Algebra: What is the domain of y=x?
Algebra: All real numbers
Algebra: Solve for a: ax + b = c
Algebra: a = (c - b)/x
Tell whether the lines for each pair of equations are parallel, perpendicular, or neither.
7x – 4y = 4 x – 4y = 3
neither
Solve: (3 - 3x)/7 = 6
x = -13
The coordinates for a point located 3 units right and 5 units up from the origin.
(3, 5)
Solve for p:
3p - 1 = 5( p - 1) - 2(7 - 2p)
p = 3
Simplify: a(b + c) - 2a(c - b)
3ab-ac
Simplify:
-4(8x - 2) -2(4 - 3x)
38x
Expand (2x – 6)2
4x2 - 24x + 36
Simplify:
-(x + 7) - 2(4x + 6)
-9x-19
Solve: 3/7x + 6 = 9
x = 7
Algebra: What's the domain of
(x2 - 3x -10) = 0?
Algebra: all real numbers
Combine Like Terms:
4h2k + 4hk2 + 2k2 + 7hk2 - 2k - 3h2k
kh2+11hk2+2k
Algebra: Write the slope-intercept form of the line passing through (3,9) (-2,4)
Algebra: y=1x+6
Simplify:
1/5(-5 + 15x) - 2/5(20x - 25)
9-5x