Help on this will mark brainalist!

Mathematics

1 answer:

vovangra [49]3 years ago

3 0

Answer:

y = 2x - 10

Step-by-step explanation:

Slope-intercept form is...

y = mx + b

To get the slope, you have to use the formula...

(y2 - y1) / (x2 - x1)

In this case,

y2 = 2

y1 = 10

x2 = 6

x1 = 10

So...

(2 - 10) / (6 - 10)

= -8 / -4 = 2

Therefore, slope is 2

y = 2x + b

Using any of the two x and y value provided, input the values in the equation

(I'm going to use 6,2)

2 = 2(6) + b

2 = 12 + b

b = -12 + 2

b = -10

Put this all together...

y = 2x - 10

Hope this helps :)

Let me know if there are any mistakes!!

You might be interested in

EQUIVALENT EXPRESSIONS<br><br> 1. 7(2+w)<br> 2. 6+5(k+4)<br> 3. 6f+2(3+f)

bulgar [2K]

Answer:

1. 7w + 14

2. 5k +26

3. 2(4f+3)

Step-by-step explanation:

6 0

3 years ago

What is the solution for the system of equations? Use the substitution method to solve.

Paraphin [41]

Y = 5 - 3x....so sub in 5 - 3x for y in the other equation

5x - 4y = -3
5x - 4(5 - 3x) = -3.....distribute the -4 thru the parenthesis
5x - 20 + 12x = -3...add 20 to both sides
5x + 12x = -3 + 20...combine like terms
17x = 17...divide both sides by 17
x = 17/17
x = 1

now sub 1 in for x into either of the original equations to find y
y = 5 - 3x
y = 5 - 3(1)
y = 5 - 3
y = 2

check...
5x - 4y = -3
5(1) - 4(2) = -3
5 - 8 = -3
-3 = -3 (correct)

so ur solution is (1,2)

3 0

3 years ago

Write f(x) = 2x2 – 44x + 185 in vertex form.

forsale [732]

Answer:

Step-by-step explanation:

$f(x)=2x^2-44x+185\\\\=2(x^2-2*11*x)+185\\\\=2(x^2-2*11*x+11^2)+185-2*121\\\\\boxed{f(x)=2(x-11)^2-57}\\\\vertex\ is\ (11,-57)$