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faltersainse [42]
3 years ago
5

I feel like crying please help me

Mathematics
1 answer:
LekaFEV [45]3 years ago
8 0
Hey there!

To start, the slope intercept equation format is y=mx+b where m=the slope and b=the y-intercept.

Because you appear to have a coordinate set to plug in for x and y as well as a slope of 4, you can plug your known values into the slope intercept equation:
y=mx+b
coordinate: (1,6)
y=6 (the y value of the coordinate point)
x=1 (the x value of the coordinate point)
m=4 (the slope of the equation, given)

6=4(1)+b

Because b, your y-intercept is your only missing value, you can simplify your equation and solve for b:
6=4(1)+b
6=4+b
b=2

Now that you have your two needed values, your slope and your y-intercept, your final equation should be y=4x+2, or the third choice.

Hope this helps and I hope you have a wonderful rest of your day! :)
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The answer's D. 35/22

Well i have to write 20 words so dont mind this part
7 0
3 years ago
Can anyone help me?i dont know how to do this
Rashid [163]
What’s the question
7 0
3 years ago
Read 2 more answers
A ball is thrown upward and outward from a height of 77 feet. the height of the​ ball, f(x), in​ feet, can be modeled by f left
Oksi-84 [34.3K]
From the given function modeling the height of the ball:
f(x)=-0.2x^2+1.4x+7
A] The maximum height of the ball will be given by:
At max height f'(x)=0
from f(x), 
f'(x)=-0.4x+1.4
solving for x we get:
-0.4x=-1.4
x=3.5ft
thus the maximum height would be:
f(3.5)=-0.2(3.5)^2+1.4(3.5)+7
f(3.5)=9.45 ft

b]
How far from where the ball was thrown did this occur:
from (a), we see that at maximum height f'(x)=0
f'(x)=-0.4x+1.4
solving for x we get:
-0.4x=-1.4
x=3.5ft
This implies that it occurred 3.5 ft from where the ball was thrown.


 c] How far does the ball travel horizontally?
f(x)=-0.2x^2+1.4x+7
evaluationg the expression when f(x)=0 we get:
0=-0.2x^2+1.4x+7
Using quadratic equation formula:
x=-3.37386 or x=10.3739
We leave out the negative and take the positive answer. Hence the answer 10.3739 ft horizontally.
6 0
4 years ago
Find the slope of (11,13), (18,4)
Paraphin [41]

Answer:

-9or

Step-by-step explanation:

im not sure, i reccomend using a slope calculator

4 0
4 years ago
8a-9÷3 if a=7/8<br> its algebra i need help
uysha [10]

Answer:

4

Step-by-step explanation:

Plug 7/8 into a.

8(7/8)-9/3  Multiply.

7-9/3           Divide.

7-3              Subtract.

4

Hope this helps!! Have a great day! (。・∀・)ノ゙

4 0
3 years ago
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