What is the slope of the line that passes through the points (-7, -7) and (-7, 1) ?
1 answer:
Answer:
undefined
Step-by-step explanation:
(-7, -7) and (-7, 1)
To find the slope of the line, we use the slope formula: (y₂ - y₁) / (x₂ - x₁)
Plug in these values:
(1 - (-7)) / (-7 - (-7))
Simplify the parentheses.
= (1 + 7) / (-7 + 7)
Simplify the fraction.
8/0
= undefined
Our line is a vertical line, which has an undefined slope.
Hope this helps!
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Answer:
y-determinant = 2
Step-by-step explanation:
Given the following system of equation:
- x + 2y = 5
- x - 3y = 7
Let's represent it using a matrix:
The y‐numerator determinant is formed by taking the constant terms from the system and placing them in the y‐coefficient positions and retaining the x‐coefficients. Then:
y-determinant = (1)(7) - (5)(1) = 2.
Therefore, the y-determinant = 2