Evaluate the expression when x=-5 X^2 + 6x-9

Mathematics

1 answer:

d1i1m1o1n [39]11 months ago

5 0

The value of the function f(x) = x² + 6x - 9 when x = -5 is -14.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

An independent variable is a variable that does not depends on other variable while a dependent variable is a variable that depends on other variable.

Given that:

f(x) = x² + 6x - 9

When x = -5:

f(-5) = (-5)² + 6(-5) - 9 = -14

The value of the function f(x) = x² + 6x - 9 when x = -5 is -14.

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the vertex of this parabola is at 4, -3, x-value is 5 and y-value at -6 what is the coefficient of the squared expression

posledela

Hello:
an equation is : f(x) = a(x-4)² - 3
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-6 =a -3
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6 0

2 years ago

Plz help me find these functions!

Iteru [2.4K]

Answer:

$\sin \alpha = \frac{5}{13}$ , $\cos \alpha = \frac{12}{13}$ , $\tan \alpha = \frac{5}{12}$ , $\cot \alpha = \frac{12}{5}$ , $\sec \alpha = \frac{13}{12}$ , $\csc \alpha = \frac{13}{5}$

Step-by-step explanation:

The angle $\alpha$ is the angle opposite to the side of length 5 and adjacent to the side of length 12. From Trigonometry we remember the following relationships: