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3 years ago

Which ordered pair is the best estimate for the solution of the system of equations? y = −1/5x + 1 y = x + 4

1 answer:

7 0

Given system of equation:
y=-1/5x +1 Equation 1
y=x+4 Equation 2
Substitute value of y in equation 2.
x+4=-1/5x+1
Multiply both sides by 5.
5x+20=-x+5
Add x to both sides
6x+20=5
Subtract 20 from both sides
6x=-15
x=-15/6
x=-5/2
Now substitute value of x in equation 1.
y=-1/5 ( -5/2) +1
y=1/2+1
y=3/2

Solution is (x,y)= (-5/2 , 3/2)

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Can you help me please ?

rewona [7]

(Create a table then plot the points)

X | 0 | 1 | 2 | 3 |

-------------------------

Y | -1 | 3 | 7 | 11 |

4 (0) -1 => 0 - 1 = -1

4 (1) -1 => 4 - 1 = 3

4 (2) -1 => 8 - 1 = 7

4 (3) -1 => 12 - 1 = 11

Just apply the table method to the others and you should be fine! :)

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3 years ago

Find slopes , ill mark brainlist

zepelin [54]

Answer:

$\frac{3}{2}$ $or$ $1\frac{1}{2}$

Step-by-step explanation:

We are given a graph and asked to find the slope.

So we can see two coordinate points, one on (0, 3) and (2, 0).

When trying to find slope, we use the method rise over run, which basically means y over x as a fraction, in which you then divide.

So count how many times it'll take for x to get to y, base it off the picture below

Since we see our numbers to be divided are 3 over 2, do the division and you get 1 1/2.

Would this be negative though? No, since the graph is in an increase, not a decrease.

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2 years ago

Consider the equation y = 3x - 1. Identify the slope and y-intercept and

tatyana61 [14]

Answer: slope=3

y intercept :(0, -1)

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3 years ago

What is the answer to <br>-5+62×(-2)?

ladessa [460]

-129 is the anwser to ur problem

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3 years ago

Read 2 more answers

A principal of $2600 is invested at 7.5% interest, compounded annually. How much will the investment be worth after 8 years?

almond37 [142]

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2 years ago