EXAM REVIEW #1. Copy the chart below and place the numbers into the appropriate categories. -10, 0, ½, √225, π, 1 / 3, 9, 500, 12 / 3, -1 Natural Whole.

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Presentation transcript:

EXAM REVIEW #1

Copy the chart below and place the numbers into the appropriate categories. -10, 0, ½, √225, π, 1 / 3, 9, 500, 12 / 3, -1 Natural Whole Integers Rational Irrational Numbers Numbers

5x + 6y – 8x + 10y x 2 – 10y + 4x y 3xy – 2x + 2y + 5y + 2x – xy ½x + ¾y – 7 + ½x + ¼y – 3

2(4x + 3) – 9 7x + 2(-2x + 1) 8x – x(x + 4) + 10x (x – 2) – 3(4x + 2)

a + b – c 5b – (a + c) 100(2b + a) a(b 2 – c)

-6 + a = 17 ½b = -24 c / 9 = = 4 – d

42 – 2a = 82 ¼b – 1 = 3 c + 5(c – 1) = 19 ½(10d – 6) = d – 15

3(2e + 12) = -2(e – 4) + e 8(f – 1) = 3f + 7 ½g – 7 = 11 – ½g 2h + 4(2h – 1) = 6(h + 4)

4(x + 3) < 12 ¾x – 4 ≥ 16 ½(4x – 6) – 3x ≤ 7 3(4 – x) – 22 > x + 48 Solve the following inequalities. Graph the solution on a number line.

rangeindependent y-value domain dependentx-value inputoutput f(x)

f(x) = 3x f(x) = x – 5 f(x) = -3x – 4 f(x) = x 2 + 2x + 5 Evaluate each function rule for x = -4.

Given the function f(x) = ½x + 1 and the domain is {-2, 0, 4, 8}, what is the range? Given the function f(x) = 3x – 4 and the range is {-7, -4, -1, 2}, what is the domain?

(2, 4) and (7, 1) (3, 3) and (-4, 3) (0, 1) and (6, 7) (2, 5) and (2, -4) Find the slope of the line between the two points given.

x + y = 2 2x – y = 4 2x + 5y = 10 x + 3y = -6 Solve the following equations for y (slope-intercept form) and graph.

4y + 4 > 8x 3x + 4y ≤ 12 -5y + 10x ≥ -10 5y < -5x Solve the following inequalities for y and graph. Shade the appropriate half-plane.

√72 Explain how to estimate the square root of the number below WITHOUT using a calculator.

Find the PERIMETER of the square below if the area of the square is 361 cm 2. A = 361 cm 2