Answer:
(-3/2, -11/2)
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Equality Properties
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define Systems</u>
y = x - 4
y = 4x + 2
<u>Step 2: Solve for </u><em><u>x</u></em>
<em>Substitution</em>
- Substitute in <em>y</em>: x - 4 = 4x + 2
- Isolate <em>x </em>terms: -4 = 4x + 2
- Isolate <em>x</em> term: -6 = 4x
- Isolate <em>x</em>: -3/2 = x
- Rewrite: x = -3/2
<u>Step 3: Solve for </u><em><u>y</u></em>
- Define equation: y = x - 4
- Substitute in <em>x</em>: y = -3/2 - 4
- Subtract: y = -11/2
Answer:
28
Step-by-step explanation:
i took quizz
Answer:
Slope of the line y = x + 10 is 1. So, any straight line perpendicular to this must be having slope of (-1).
Let, the line be y = - x + b and it passes through (15, -5).
So, 15 = 5 + b
b = 10.
So, equation of that line: y = -x + 10
Or, x + y = 10.
Y-intercept of the line = 10 units.
Answer:
-6.5
Step-by-step explanation: