2x-y=4 in y=mx+b form ?????
1 answer:
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This is an equation representing the ellipse
Explanation:
- The general equation for an ellipse is
so, when you simplify it according to the characteristics of a and b, you would end up in the similar form of the equation given
- where a represents half the length of the major axis and b represents half the length of the minor axis.
- The easiest method to identify, look at whether both the variables are squared, and also the coefficient of x and y should be positive but different.
Answer:
Option A is correct
Difference of squares identity should be used to prove 49-4 =45
Step-by-step explanation:
Prove that : 49 - 4 = 45
Polynomial identities are just equations that are true, but identities are particularly useful for showing the relationship between two apparently unrelated expressions.
Difference of the squares identity:
Take LHS
49 - 4
We can write 49 as and 4 as
.
then;
Now, use the difference of square identity;
here a =7 and b = 2
or
= RHS proved!
therefore, the difference of square polynomial identity should be used to prove that 49-4 =45