Alex’s paycheck for the last two weeks totaled $239.64. He owes the cell phone company $45.87. How much money does he have left?
1 answer:
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Answer:
the slope is
Step-by-step explanation:
Notice that you are given two points to use for the slope calculation:
So we use the formula for the slope of a line given two points:
If the matrix is of 2 by 2 then we can find the determinant of the matrix.
Then (ad - bc ) gives you the determinant of the matrix.
For example,
= (2)(-2) - (1)(4)
= - 4 - 4
= -8