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Solve: x - 5 > - 3
open dot on 2, shaded to the right x > 2
- 5 < x - 3 < 1
-2 < x < 4 (open dots, shaded between)
The temperature will be at least 50 degrees.
t >/= 50
Find the slope between (4, 3) and (5, 2)
-1
Find the slope: (3, 9) and (3, -5)
undefined
Find the slope: (-2, 6) and (4, 6)
zero
What is the x intercept? y = 4x -12
(3, 0)
What is the y - intercept? y = 4x -12
(0, -12)
Graph the line: y = 2/5 x -1
see graph
Graph the line: y = -3
horizontal line at y = -3
Graph the line: x = 2
Vertical line
Graph the inequality: y < -1/3 x + 7
dashed line, negative slope, crosses at 7
Write the line in slope - intercept form: m = 5, b = -9
y = 5x-9
Write the line in slope - intercept form: m = -1/7 b = 5
y = -1/7x +5
Write the line in slope - intercept form: m = -2, and through (0,9)
y = -2x + 9
Write the line in slope - intercept form: through (1, 5) and ( 6, 25)
y = 4x +1
