14x-3y=53 is the answer. I put one equation over the other since there are two of them that needed to be solved
That is the best graph I can get for the equations .
Answer:
The equation of the axis of symmetry is x = 
The coordinates of the vertex are (
,
) ⇒ 2nd answer
Step-by-step explanation:
The quadratic function y = ax² + bx + c is represented graphically by a parabola which has a minimum/maximum vertex (h , k), where
- h =
and k is value y at x = h - The axis of symmetry of the parabola is a vertical line passes through the vertex point and its equation is x = h
- The minimum/maximum value of the function is (h , k)
∵ y = 4x² + 5x - 1
∵ The form of the quadratic function is y = ax² + bx + c
∴ a = 4 , b = 5 , c = -1
∵ The coordinates of the vertex points are (h , k)
∵ h = 
∴ h = 
- To find k substitute x in the function by 
∵ k = 4 (
)² + 5(
) - 1
∴ k = 4 (
) + (
) - 1
∴ k =
-
- 1
∴ k = 
∴ The coordinates of the vertex are (
,
)
∵ The equation of the axis of symmetry is x = h
∵ h = 
∴ The equation of the axis of symmetry is x = 
In constructing 98% confidence intervals for means, it is true that the statistic is good enough, and is less uncertain.
<h3>What is a confidence interval?</h3>
A confidence interval expresses the degree of uncertainty surrounding a given statistic. A margin of error is frequently used with confidence intervals. It reveals the degree to which you may be certain that the findings of a poll or survey correspond to what you would anticipate discovering if it were possible to poll the complete population. Levels of confidence are inextricably linked to confidence intervals.
Your level of confidence in your findings is shown by the confidence interval. You can never be certain that your results will hold for future surveys or experiments. In statistics, being 95% or 98.5% certain is typically seen as "good enough."
Learn more about confidence intervals here:
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250% of 60 is 150.
100% = 60,
2x 100% = 120
50% = 30
120 + 30 = 150.