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Zarrin [17]
3 years ago
13

HD Straight line graphs

Mathematics
1 answer:
Taya2010 [7]3 years ago
5 0

Answer:

The equation of the sraight line  3x- y+ 6 =0

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given that the gradient of the function

   |gradf| = 3  and point (-1,3)

Given that the slope of the line

 m = 3

The equation of the straight line passing through the point(-1,3) and slope m =3

y -y_{1} = m(x-x_{1} )

y-3 = 3(x-(-1))

y-3 = 3x+3

3x +3-y+3=0

3x- y+ 6 =0

<u><em>Final answer:-</em></u>

The equation of the sraight line  3x- y+ 6 =0

<u><em></em></u>

   

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It is c and b there is two answer and they both agree with each other
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3 years ago
A ball is thrown from an initial height of 7 feet with an initial upward velocity of 23 ft/s. The ball's height h (in feet) afte
Fantom [35]

Answer:

Step-by-step explanation:

If we are looking for the time(s) that the ball is at a height of 15, we simply sub in a 15 for the height in the position equation and solve for t:

15=-16t^2+23t+7 and

0=-16t^2+23t-8

Factor this however you factor a quadratic in class to get

t = .59 seconds and t = .85 seconds.

This means that .59 seconds after the ball was thrown into the air it was 15 feet off the ground. Then the ball reached its max height, gravity took over, and began pulling it back down to earth. The ball passes the height of 15 feet again on its way down after .85 seconds.

5 0
3 years ago
Pls help I’m stuck on this question
dimulka [17.4K]
Answer: B) y=1/4x+7/2

Step 1: Slope

Knowing that the equation will be perpendicular to the one given will only give us the slope. Perpendicular means that the slope will be opposite to what it is now.

The opposite of -4 (the current slope) is 1/4. Even knowing only this will tell us that the answer is b, but I will continue to explain for when no options are given.

Step 2: Y-intercept

Now that we know the slope, the perpendicular aspect of this equation will no longer be of any help.

To find the y-intercept, we need to substitute y and x with the point given.

Our current equation is— y= 1/4x+b

Let’s substitute the point into this. The point (-2,3) tells us that the y-value is 3 and the x-value is -2.

y= 1/4x+ b

3=1/4(-2)+b

3 = -1/2 +b
+1/2 +1/2
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3 1/2 =b

Step 3: Improper fraction

Being that it is preferred to leave fractions improper, let’s turn 3 1/2 into an improper fraction. This will turn into 7/2 (comment below if you need an explanation of how to do this)

Final answer: now that we know that the slope is 1/4 and the y-intercept is 7/2, we know that our equation will be y=1/4x+7/2

Hope this helps comment below for more questions:)
8 0
3 years ago
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Answer:A= - 1/5

Step-by-step explanation:

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3 years ago
Castillejajamie<br><br> hi bro.......
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no idea who that is but OWO

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3 years ago
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