Answer:
domain: [- ∞ , ∞]
range: (8 , -∞]
Step-by-step explanation:
- ∞ < x < ∞
y < 8
Answer:
x = 1
Step-by-step explanation:
Given in the question the equation
y = -x² + 2x - 1
To find the x-intercept, substitute in 0 for y
0 = -x² + 2x - 1
To find value of x use quadratic equation
x = -b ± √b²-4ac / 2a
here a = -1
b = 2
c = -1
x1 = -2 + √2²-4(-1)(-1) / 2(-1)
= -2 + 0 / -2
= -2 / -2
= 1
x2 = -2 - √2²-4(-1)(-1) / 2(-1)
= -2 - 0 / -2
= -2 / -2
= 1
The slope of the line as shown in the graph attached is 7/3
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
A variable can either be independent or dependent. A dependent variable depends on other variable while an independent variable does not depend on other variable.
A linear equation is in the form:
y = mx + b
Where m is the rate of change (slope) and b is the y intercept.
The slope of a line = vertical rise / horizontal run
From the image:
Slope = rise / run = 7/3
Find out more on equation at: brainly.com/question/2972832
#SPJ1
Answer:
Option C) -cosu is correct
Therefore the simplified expression is 
Step-by-step explanation:
Given expression is 
To find the value of the given expression :
By using the formula 
Substitute A=u and 
in the above formula we get
( here 
and 
)
Therefore option C) -cosu is correct
Therefore the simplified expression is
Answer:
for the first one its C,D and E
but for the second one i dont
know so sorry
Step-by-step explanation:
