Step-by-step explanation:
the answer would be 40 4x 10x h = 4x
Answer:
b)
Step-by-step explanation:
A is invertible if and only if det(A)≠0. Let's compute the determinant of A and find the values k for which it is nonzero.
Using Sarrus's rule, we obtain that

Note that the determinant is a quadratic equation on k, which can be factored as above.
Now the determinant is only zero if k=5 or k=2 (the zeroes of the quadratic polynomial). Therefore, if k≠2,5 the determinant is nonzero so A is invertible.
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Y-3=2(x-(-1))
y-3=2x+2
y=2x+5
plug in the numbers to the point slope equation and solve
Answer:
Y=1
Step-by-step explanation:
its a horizontal line