A
A square matrix is invertible if its determinant is not zero.
The determinant for this matrix is
so it does not have an inverse because its determinant is zero.
Evaluate the expression for x = - 5 and y = 7 2x+3y-11
1 answer:
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Answer:
Step-by-step explanation:
Since we know the slope and a point, we can use the point-slope form.
The point-slope form is:
Substitute 8 for m, and let (-4,-3) be x₁ and y₁, respectively. Thus:
Simplify:
Distribute:
Subtract 3 from both sides:
And we're done!