Answer:
Step-by-step explanation:
C
Slope intercept form of a line passing through (-1, -2) and (1, -4) is
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Solution:
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We have to find the equation of a line in slope intercept form.
Given that
Line is passing through point (− 1, − 2) and (1, − 4).
Equation of line passing through point and is given by,
In our case
Substituting given value in (1) we get
,
Hence slope intercept form of a line passing through (-1, -2) and (1, -4) is
The graph of the exponential function f(x) = 5(2)ˣ is as shown in the attached file.
<h3>How to draw the graph of an exponential Function?</h3>
We want to draw the graph of the exponential function;
f(x) = 5(2)ˣ
At input of x = 0, we have;
f(x) = 5(2)⁰ = 5
At input of x = 1, we have;
f(x) = 5(2)¹ = 10
At x = -1, we have;
f(x) = 5(2)⁻¹ = 2.5
At x = -2, we have;
f(x) = 5(2)⁻² = 1.25
Read more about Graph of Exponential Function at; brainly.com/question/12940982
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2cos²x + cosx − 1 = 0
(cosx+1)(2cosx-1)=0
so cosx+1=0
or 2cosx-1=0
1) cosx+1=0
cosx=-1
x=π+2πk, k∈Z
2) 2cosx-1=0
2cosx=1
cosx=0.5
x=+-
, k∈Z
find value for the interval [0, 2 pi )
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Answer: