Fun with Equations
Solve: 4x + 7 = 31
x = 6
Algebra: Is this a function: {(1, 2), (2, 3), (2, 4)}
Algebra: No
simplify:
4h2k + 4hk2 + 2k2 + 7hk2 - 2k - 3h2k
kh2+11hk2+2k
Find the x- and y-intercept of the
line 2x + 3y = –18
x-intercept is –9; y-intercept is –6.
Rewrite in slope-intercept form
3x + 7y = 21
You solve an equation and your result is:
0 = 5. How many solutions?
No Solution
Solve: 2(3x - 4) = 34
x = 7
Write the polynomial in standard form
4g – g3 + 3g2 – 2
-g3 +3g2 + 4g - 2
Name a point on the line
f(x) = 3/4(x-2)+7
(2,7)
Algebra: What is the slope intercept formula?
algebra: y=mx+b
Algebra: What is the domain of y=x?
Algebra: All real numbers
Solve for z.
(z + a)/b = c
z = bc-a
Solve:
3p - 1 = 5( p - 1) - 2(7 - 2p)
p = 3
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
Simplify:
-(x + 7) -2(4x + 6)
-9x-19
Simplify
x^3x^-2
x
Solve:
144 = (x + 4)^2
x = 8, x = -16
Simplify: a(b + c) - 2a(c - b)
3ab-ac
Simplify: -4(8x - 2) -2(4 - 3x)
38x
Expand (2x – 6)2
4x2 - 24x + 36
Algebra: What is the Standard form of a linear equation:
Ax + By = C
f(x) = x
g(x) = f(x + 3) - 4
How is g(x) shifted compared to f(x)?
Shifted down 4 units, left 3 units.
Find the zeros of the following equation.
x^2 + 5x + 6
x = -2
What's the domain of
f(x) = (x2 - 3x -10) ?
Hint: What can you put in and find a value for?
All real numbers
Algebra: Name a point on the line.
Algebra: y - 5 = 0.5(x - 13)
Algebra: Write the slope-intercept form of the linear equation for the line passing through (3,9) (5,4)
Algebra: y=-5/2x+33/2
Simplify:
1/5(-5 + 15x) - 2/5(20x - 25)
9-5x
answers vary