Answer:
x = -50
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality<u>
</u>
<u>Algebra I</u>
Step-by-step explanation:
<u>Step 1: Define</u>
-2/5x - 2 = 18
<u>Step 2: Solve for </u><em><u>x</u></em>
- [Addition Property of Equality] Add 2 on both sides: -2/5x = 20
- [Division Property of Equality] Divide -2/5 on both sides: x = -50
-1,0,1,3 because domain is the x values
It’s not a solution because 5+3 = 8 and 20 is greater than eight but there’s a line under the greater sign which means it’s greater than or equal to and 20 is not equal to 8 (if that makes sense)
Answer:
I. C
II. A, D
III. B
Lines that coincide have infinite solutions, and parallel lines have no solutions.
Step-by-step explanation:
3. To solve this equation, look at the slopes of the equation. The equations are in y=mx+b form. m is equal to the slope.
Equations with different slopes will have one solution, meaning that the lines will intersect once.
Equations with the same slope will either have no solutions or infinite solutions. <u>If the equations are the exact same</u>, it will have infinite solutions, meaning that the line "intersects" itself in infinite places since its basically one line right on top of another. <u>If the equations have different y-intercepts</u>, it will have no solutions because the lines are going at the same angle, are parallel and will never intersect.
This means that A and D have one solution, B has infinite solutions, and C has no solutions.
4. Lines that coincide have infinite solutions, and parallel lines have no solutions.
4.
A non function is when xs repeat… the x is repeat which is 5