4x + 7 = 31
x = 6
2/5 x 9/2
9/5
What is the slope intercept formula?
y = mx + b
Is the slope of the following linear equation positive, negative or zero?
y = 2x - 7
Positive
Solve for a:
ax + b = c
a = (c - b)/x
14 + x + 3 = -36
x = -53
-2(3/7) ÷ 1/3
-51/28
What is the Standard form of a linear equation?
ax + by =c
Find the x-intercept of the line:
2x + 3y = –18
x = -9
Expand (2x – 6)2
4x2 - 24x + 36
3x + 3 - 2x = 21
x = 18
-4(3x - 2) -2(4 + 3x)
-18x
What is the point-slope form of a linear equation?
y - y1 = m(x - x1)
Find the y-intercept of the line:
2x + 3y = –18
y = -6
What property is shown: c (a + b)= ca + cb
Distributive property
3x - 1 = 5(x - 1) - 2(7 - 2x)
x = 3
-(x + 7) -2(4x + y)
-9x -7 -2y
What is the formula for the Pythagorean Theorem?
a2 + b2 = c2
Tell whether the lines for each pair of equations are parallel, perpendicular, or neither.
7x – 4y = 4 x – 4y = 3
Neither
What is the range of x = 7?
All Real numbers
(3 - 3x)/7 = 6
x = -13
([(2 x 3) + (7 x 4)] + 2) x [(8 - 6) - (4 - 3)]
36
What is the formula for area of a circle?
A = πr2
Write the slope-intercept form of the linear equation for the line passing through (3,9) (5,4)
y = (-5/2)x + 33/2
What's the domain of
(x2 - 3x -10) = 0?
All Real numbers