Notes # How to show work

#1)

If x = -19, find | x + 7 |

#2)

If x = 6, find 3| x – 20 |

#3)

If f(x) = (-x)2 + x – 11, find f(-3)

#4)

If f(x) = -x2 + x – 11, find f(-3)

#5)

The domain of f(x) is {-3, -2, -1}. If f(x) = -3x2 + x, state the relation of f(x) as a set of ordered pairs.

#6)

Evaluate | x | – 17, if x = -3.

#7)

Solve 18x2 = -57x – 35

#8)

Factor 18x2 – 128y2

#9)

Factor 300x2 – 420x + 147

#11)

Find the slope of a line through (-3, 2) and (-4, 6).

#12)

Write the equation in standard form of a line going through the point (3, -9) with the slope of Â˝ .

#13)

Solve | 4x + 14 | < 14

#15)

Solve the following equation for x by completing the square ax2 + bx + c = 0

#14)

#12)

Find the distance between (-3, 2) and (-4, 6).

Solve |2x â€“11 | > 6

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