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2 answers:
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Answer:
60
Step-by-step explanation:
We have been given the matrix;
For a 2-by-2 matrix, the determinant is calculated as;
( product of elements in the leading diagonal) - (product of elements in the other diagonal)
determinant = ( 5*4) - (8*-5)
= 20 - (-40) = 60
Answer:
Option B (1,10)
Step-by-step explanation:
we have
we know that
If a ordered pair is on the graph of f(x) then the ordered pair must satisfy the function f(x)
<u><em>Verify each case</em></u>
case A) (0,0)
For x=0
Compare the value of f(x) with the y-coordinate of the ordered pair
therefore
The ordered pair is not on the graph of f(x)
case B) (1,10)
For x=1
Compare the value of f(x) with the y-coordinate of the ordered pair
therefore
The ordered pair is on the graph of f(x)
case C) (0,10)
For x=0
Compare the value of f(x) with the y-coordinate of the ordered pair
therefore
The ordered pair is not on the graph of f(x)
case D) (10,1)
For x=10
Compare the value of f(x) with the y-coordinate of the ordered pair
therefore
The ordered pair is not on the graph of f(x)