What’s the anwers ? Need help
2 answers:
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Answer:
Option C
Step-by-step explanation:
All of these equation have a slope of x=-3, as this is the only number that will be acompanied by an x (the slope of a function is the number on the equation that has an X). To know which one of this equations passes through the points (7;-2) we can supplant these numbers on each equation until the result at both sides are equals.
The correct answer is the option c, because if we supplant these numbers (x=7 and y=-2) on the equation, we get an equality.
Answer:
y - 5 = -8/7(x + 3)
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
- Left to Right
<u>Algebra I</u>
Slope Formula:
Point-Slope Form: y - y₁ = m(x - x₁)
- x₁ - x coordinate
- y₁ - y coordinate
- m - slope
Step-by-step explanation:
<u>Step 1: Define</u>
Point (-3, 5)
Point (2, -3)
<u>Step 2: Find slope </u><em><u>m</u></em>
Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>
- Substitute [SF]:
- Subtract/Add:
<u>Step 3: Write Equation</u>
<em>Plug in variables into the general form.</em>
y - 5 = -8/7(x + 3)
y + 3 = -8/7(x - 2)
You can do this one simply just by plugging in the values of x and y for each answer.
Note: (0,5) is just a way to right x=0 and y=5
Try answer A (0,5)
This is not true. 5 is not bigger than 5 so A is not the answer
Try answer B (1,7)
This is true so answer B works!
Might as well try answer C (7,1)
1 is obviously not greater than 12 so C does not work
The answer is B (1,7)
Note: (0,5) is just a way to right x=0 and y=5
Try answer A (0,5)
This is not true. 5 is not bigger than 5 so A is not the answer
Try answer B (1,7)
This is true so answer B works!
Might as well try answer C (7,1)
1 is obviously not greater than 12 so C does not work
The answer is B (1,7)