Vocabulary
What are the constant(s)?
1/2 (5x + 4) = -10
4 and -10
–6x – 4 – 6x + 4
-12x
-2(3x – ½ )
-6x + 1
7 – 5a = -23
a=6
y = 3x + 6
slope = 3
y intercept (0,6)
What are the coefficient(s)?
1/2 (5x + 4) = -10
1/2 and 5
8y + 3x – 7 – 6x + 2y
10y - 3x - 7
5 – 4(x +2)
-4x -3
4x – 3 = 6x – 8
x = 2.5 or x = 5/2
y = -x + 4
slope = -1
y-intercept (0,4)
**Double**
What are integers?
Positive Whole numbers
Negative Whole numbers
Zero
¼x - ¾ + 1 – ½x – 5
-1/4x - 4 3/4
Factor: 3a + 21
3(a + 7)
¼ (3x + 16) = ½ (7x – 25)
x=6
y = 1/2x - 6
slope = 1/2
y intercept is (0, -6)
What are rational numbers?
Includes positive and negative fractions and decimals and zero.
0.2x + 1/5 + 3/5x – ¼
4/5x - 1/20
**Double**
Factor: 3ac + 5ab + 7ad
a(3c + 5b + 7d)
**Double**
5x + 4 = 8 + 9x
3 2
x = -16/17
y = -1/5x
slope is -1/5
y-intercept is (0,0)