. Zapisz odpowiednie wyrażenie algebraiczne:
1 answer:
Answer:
We need to right the proper algebraic expression to each case.
<h3>(a) Number <em>x </em>greater than <em>y</em></h3><h3><em />Each chicken has two legs, and each cow has four legs, so the expression of the total number of legs is
Where represents chickens and
represents cows.
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First, let's find the x and y intercepts
In the first equation
y - 4x = -1
Put x =0
y= - 1
(0, -1)
Put y=0 and the n solve for x
0 - 4x = -1
-4x = -1
x=0.25
(0.25 , 0)
The points for the first equation is (0, -1 ) and (0.25, 0)
Next is to find the intercts for the second equation
y + x = 4
put x=0
y = 4
(0, 4)
Put y =0
0 + x = 4
x = 4
( 4, 0)
The points for the second equation are;
(0, 4) and (4, 0)
Below is the graph
