How many times does the graph of 4x = 32 - x2 cross the x-axis? 0 1 2 What are the solutions to the equation?
2 answers:
Answer:
- the graph does not cross the x-axis
- the solutions are x = -8, x = 4.
Step-by-step explanation:
The given equation graphs as two points on the number line:
- x = -8
- x = 4
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In order for the graph of a function of x to cross the x-axis, there must be a function of x. The given equation is an equation that is true only for specific values of x. <em>It is not a function of x</em>.
If you want to graph y = x^2 +4x -32, you will find it crosses the x-axis 2 times.
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<em>About the attachment</em>
The blue line is a graph of the left side of the given equation. It crosses the x-axis 1 time. The green curve is a graph of the right side of the given equation. It crosses the x-axis 2 times, in different places than the blue line. The x-values of the points where the blue and green curves intersect are the solutions to the equation.
The red curve is the proposed function of x (above). It crosses the x-axis 2 times.
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The value of x is 9.
We have : - 25 = 7 - (5x - 13)
We have to find the value of x.
<h3>If f(x) = g(x), than what do you understand by true solution of this equation?</h3>The true Solution of the equation is the value of x for which LHS = RHS.
For example - if ax + b = cx + d , then
ax - cx = d - b
x = is the true solution of the equation.
In the question given -
- 25 = 7 - (5x - 13)
- 25 = 7 - 5x + 13
5x = 45
x = 9
Hence, the value of x for which LHS = RHS is 9.
To solve more questions on finding unknown variable, visit the link below -
#SPJ1
Hello,
Please, see the attached file.
Thanks.
Please, see the attached file.
Thanks.