Equations
Graph this inequality on a number line.
x < -2
open circle shaded to the left
Algebra: Is this a function: {(1, 2), (2, 3), (2, 4)}
No, the x-coordinate of 2 is repeated
Algebra: What is the slope-intercept form of a linear equation
Algebra: y= mx + b
Write the inequality that has a graph with a closed circle on 7 and shades to the right.
"x is greater than or equal to 7"
x > 7
Is this linear? 3x2+5=y
No, the variable x is squared
What is the slope of the following equation:
2x + 2y = 8
slope = -1
What is the point-slope form equation of a line?
y-y1= m(x-x1)
Solve: 4x +3(5-x) = 2x +6
x = -9
solve 3x - 14 < 19
x < 11
Algebra: Solve for a: ax + b = c
Algebra: a = (c - b)/x
find the slope between (14, 9) and (6, 7)
x = 1/4
write a slope intercept form line that crosses the y-axis at 8 and a slope of 3
y=3x+8
Solve for x: 4(x-7) > x +11
x > 13
Arithmetic, Geometric or neither?
21, 25, 29, ...
Arithmetic
common difference is 4
What's the slope of the line passing through (3,9) (5,4)
slope: -5/2
write the point slope equation through (3, -7) with a slope of 5
y+7 = 5(x-3)
Solve | 2x+5| = 7
2x+5=7 or 2x+5=-7
x=1 or. x=-6
11 < 2x +5 < 23
3 < x < 9
Is this arithmetic or geometric or neither? 25, 5, 1, ...
geometric and the common ratio is 1/5
find the slope between (5, 6) and (5, -2)
undefined
write the slope intercept form equation of a line through (2, 5) and (4, -9)
y=-7x+19