Answer:
Step-by-step explanation:
<u>When the line is given in standard form:</u>
- ax + by = c, it has slope of -a/b
<u>Given line:</u>
<u>It has a slope:</u>
A line perpendicular to the given should have a slope m = 1 as negative reciprocal to the given
<u>Let's see which line has the slope of 1:</u>
- 1. m = -(-1)/6 = 1/6 - NO
- 2. m = -4/4 = -1 - NO
- 3. m = -2/4 = -1/2 - NO
- 4. m = -(-2)/2 = 1 - YES
Correct option is D
10 (x/2 +6)=8
10x/2 +60=8
Subtract 60 from both sides
10x/2+60-60=8-60
10x/2= -52
Multiply both sides by 2
(10x/2)*2= -52*2
10x= -104
Divide both sides by 10
10x/10=-104/10
Answer: x= -10.4
Answer:
f(9) = -131
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
Step-by-step explanation:
<u>Step 1: Define</u>
f(x) = -12x - 23
x = 9
<u>Step 2: Evaluate</u>
- Substitute: f(9) = -12(9) - 23
- Multiply: f(9) = -108 - 23
- Subtract: f(9) = -131
