Alg1 CR

Finding Slope

100

Find the slope of AB if A (4, -6) and B (7, 2)

m = 8/3

200

Find the slope of XY if X (3, 5) and Y (9, -3)

m = -8/6 = -4/3

300

Given the linear equation y=4x+7, what is the slope?

m = 4

400

If a line has a slope of -8/5, what is the slope of a line perpendicular to that line?

m = 5/8

500

Given the linear equation 7x + 3y = 19, what is the slope?

m = -7/3

Solve equations

100

n - 19 = -16

n = 3

200

-60 = 5x

x = -12

300

3(y+4) = -9

y = -7

400

7y + 13 = 13y- 17

y = 5

500

3(r-3) = 4(3-4r)

r = 21/19

solving proportions

100

8 4a -- = -- 3 9

a = 6

200

k - 5 3 ----- = --- 4 2

k = 11

300

2x - 9 7 ------- = --- 3 - x 4

x = 19/5 = 3.8

400

4y + 5 2y + 7 ------- = -------- 5 7

y = 0

500

4 - 3t ------ = 5 5

t = -7

add/subtract polynomials

100

(3a^2 + 5a - 8) + (2a^2 +7a - 4)

5a^2 + 12a - 12

200

(4x - 2) + (7-6x)

-2x + 5

300

x^2 - y^2) - ( 3x^2 - 2xy - y^2)

-2x^2 + 2xy

400

(6p - 4q - 5) - (-3p + 4q - 8)

9p - 8q + 3

500

(y^2 + 6y - 5) + (-y^2 + 2y - 3)

8y - 8

FOIL

100

c ( 2c - 5)

2c^2 - 5c

200

(m - 3)(m + 3)

m^2 - 9

300

(6x - 1)^2

36x^2 -12x +1

400

3y( 2y^2 - y) + 2y^2(y - 5)

8y^3 - 13y^2

500

7n - 3[n - 4(5 - n)]

-8n + 60