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miss Akunina [59]
3 years ago
14

Choose the equation that represents a line that passes through points (−1, 2) and (3, 1).

Mathematics
2 answers:
Sholpan [36]3 years ago
7 0
B) X+4y=7

It works with both equations
prohojiy [21]3 years ago
7 0

Answer:

B

Step-by-step explanation:

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Can someone help me with these questions please?
kotykmax [81]

Step-by-step explanation:

You can solve systems of equations using either substitution or elimination.  For these problems, I recommend elimination.  I'll do the first one as an example.

-3x + 16y = 9

-4x + 8y = 12

Multiply the second equation by -2.

8x − 16y = -24

Add to the first equation (notice the y's cancel out).

(-3x + 16y) + (8x − 16y) = 9 − 24

5x = -15

Solve for x.

x = -3

Now you can plug this into either equation to find y.

-3(-3) + 16y = 9

9 + 16y = 9

y = 0

The solution is (-3, 0).

3 0
3 years ago
Amir stands on a balcony and throws a ball to his dog, who is at ground level. The ball's height (in meters above the ground), x
Marrrta [24]

When we graph the function, it has a vertex of (3, 16).

The maximum of the graph is the highest "x" value on the graph which is 3.

Since the maximum is 3, it will take 3 seconds for the ball to reach its maximum height.

A graph will be shown below showing the function and vertex.

Best of Luck!

5 0
3 years ago
Read 2 more answers
HElp me please!!! IVE HAD TROUBLE W THIS SINCE 11
Neporo4naja [7]

Answer:

Nocomplanar? Right because they’re not all in the same place?

Step-by-step explanation:

7 0
3 years ago
31-18÷6 how would you solve this using PEMDAS?
sergeinik [125]
P: Parenthesis
E: Equation 
M:Multiplication 
D: Division 
A : addition 
S: Subtraction

So first you need to divide because it is before so you divide 18 by 6 which is 3 then you subtract (31 - 3) which gives you 28
answer : 28

7 0
3 years ago
Read 2 more answers
What is 64 mi/hr=? Ft/s please work out so I can see a example
Arlecino [84]
64\ \frac{mile}{hour}=x\frac{feet}{second}\\\\
Converting\ unites:\\
1\ mile= 5280\ feet\\
1\ hour=\ 3600\ second\\\\
64\frac{mile}{hour}=64*\frac{5280feet}{3600second}=\frac{33792\ feet}{3600\ second}=93,9\frac{feet}{second}
6 0
3 years ago
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