Lets write equation of a function:
y = kx + n
Direct variation in simple is equation of a line which has n=0 or in other words which y to x ratio is k.
First option gets 7=7 but it isnt direct variation because n is not equal to 0
third option is indeed correct. once we implement coordinates (2,7) we get 7=7
Answer is
y = 7/2x
Answer:
1) -0.669
2) -0.669
3) 0.669
Step-by-step explanation:
Since we are subtracting or adding multipled of pi, we will either obtain 0.669 or -0.669 as our answer for each of the three different questions.
Cosine is the x-coordinate in our orderes pairs. If our point ends up on the right side of the y-axis, the cosine will be positive. If our point ends up on left side, it will be negative.
Choose a thetha (I'm going to choose it in degrees) in the first quadrant to help with a visual.
If theta=70:
1) then 180-70=110 which is in second quadrant, so our cosines will be opposite in value.
2) then 180+70=250 which is in third quadrant, so our cosines will be opposite in value.
3) then 4×180-70=720-70=650 =1(360)+290 which ends up in the 4th quadrant which means the consines will have the same value.
Answer:
You are absolutely correct.
Step-by-step explanation:
If y represents distance then 2 miles count as distance and if x represents the rate and hours 4 miles per hours is x.
See the explanation
<h2>
Explanation:</h2>
Remember you have to provide complete questions in order to get exact answers. Here I'll provide a general explanation, so:
<h3>First.</h3>
The slope is:
The y-intercept is:
By using graphing tool, we get the first graph shown below.
<h3>Second.</h3>
The slope is:
The y-intercept is:
By using graphing tool, we get the second graph shown below.
<h3>Third.</h3>
The slope is:
The y-intercept is:
By using graphing tool, we get the third graph shown below.
<h3>Fourth.</h3>
The slope is:
The y-intercept is:
By using graphing tool, we get the fourth graph shown below.
<h2>Learn more:</h2>
Linear inequalities: brainly.com/question/12984296
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