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Professor
Steve
RossA "solution" to an equation with 'x' and 'y' in it is a pair of numbers for 'x' and
'y' that make the equation a true statement.
There are an infinite number of solutions to a single equation with two
variables in it.
If you take a piece of graph paper and mark a dot on it for each solution of
this equation ... or even for only a hundred of them ... you'll see a shape on
the graph called a "parabola" ... like a big, wide cup or scoop. It crosses the
x-axis at two places ... one where 'x' is -2, the other where 'x' is 3 ... and
the lowest point of it is where it crosses the y-axis, where 'y' is -6 .
Every point on that big wide curved line is a 'solution' to your equation.
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What is the solution set of x2 y2 26 and x y 6?
If you mean: x squared + y squared = 26 and x + y = 6 Then it works out that: y = 1 or 5 and therefore x = 5 or 1
How do you solve y-6-2(x 2)?
If you mean: y-6-2(x+2) then it can be simplified to y-2x-10
Y equals b plus x plus x2?
y=b+x+x^2 This is a quadratic equation. The graph is a parabola. The quadratic equation formula or factoring can be used to solve this.
Factorise x2 minus y2 plus 9x minus 9y?
x2 - y2 + 9x - 9y =(x2 + 9x) - (y2 + 9y) =x(x + 9) - y(y + 9)================================Another way to go after it:x2 - y2 + 9x - 9y =(x2 - y2) + 9x - 9y =(x + y) (x - y) + 9 (x - y) =(x + y + 9) (x - y)
How do you Evaluate the expression X2 and y4?
It is x*x + y*y*y*y
