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Brut [27]
2 years ago
8

Y=2x-11 and -x -y=-4 solve by substitution

Mathematics
1 answer:
IceJOKER [234]2 years ago
8 0

Answer:

(5, -1)

Step-by-step explanation:

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(TEN POINTS)
Rainbow [258]
F(-1)= -3 is (-1,-3) and f(2) = 6 is (2,6) where f(x) = y
y=mx + b is the slope-intercept form whereas m equals the slope (rate of change) and b equals the y-intercept (initial amount/what y is when x is 0.)

First, we need to find the slope between the two points (-1,-3) and (2,6). To find the slope we could use one of it's formulas \frac{y^2 - y^1}{x^2 - x^1}.  
1. (-1,-3)
2. (2,6)
\frac{6 - -3}{2 - -1} → \frac{9}{3} → \frac{3}{1}

The slope is 3 (\frac{3}{1}). Thusly, y = 3x + b

To find out the y-intercept, we can reverse the slope. [Note: This \frac{3}{1} is in \frac{rise}{run} where rise is 'y' and run is 'x'. Reversed would be \frac{-3}{-1} ]. Take the second ordered pair and use our reversed slope on it until we get 0 for x. 

(2, 6) ⇒ (2 - 1, 6 -3) ⇒ (1, 3) ⇒ (0,0)

Y-intercept is 0. Therefore, y= 3x + 0 [NOTE: y = f(x), so if you want it in function notation form it's just f(x) = 3x + 0.]
6 0
3 years ago
What is 516.3606 rounded to the nearest hundredths
liraira [26]
516.36 because the thousandth digit isn't above 5 so you don't round up
6 0
3 years ago
Read 2 more answers
Which other angles could be in that triangle?
CaHeK987 [17]

The other angles in the isosceles triangle with an angle of 100° will be 40°

Step-by-step explanation:

Lets define an isosceles triangle first.

"An isosceles triangle is a triangle with two equal sides and two equal angles.

Given that an angle of the triangle is 100°

We know that the sum of internal angles of a triangle is 180°

The sum of remaining two angles is:

=180°-100°

=80°

As the triangle is an isosceles triangle, the two angles will be equal.

So the angles will be:

=\frac{80}{2}\\=40

The other angles in the isosceles triangle with an angle of 100° will be 40°

Keywords: Triangle, isosceles triangle

Learn more about isosceles triangle at:

  • brainly.com/question/9231234
  • brainly.com/question/9214411

#LearnwithBrainly

7 0
3 years ago
Plz help I’m in algebra 2
chubhunter [2.5K]

Could you take another photo with you zoomed a lil bit more so I can answer it?

4 0
3 years ago
House prices in a certain area went
Scorpion4ik [409]

Answer:

£60000

Step-by-step explanation:

8 0
2 years ago
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