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Lubov Fominskaja [6]
3 years ago
7

PLEASE HELP ME!!! ASAPPPPP!!!!!! expand and simplify​

Mathematics
1 answer:
deff fn [24]3 years ago
4 0

Answer:

8x+11

Step-by-step explanation:

This problem can be solved by using distributive property.

if there is expression  a(b + c).

then by distributive property.

a(b + c). = ab + ac

given problem

3(2x+1) + 2(x+4)

by using distributive property.

=>3*2x + 3*1 + 2*x + 2*4

=> 6x + 3 + 2x + 8

adding term containing x together and constant term together

=> 8x + 11

Thus, solution is 8x+11

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A line passes through the points (4,8) and (2,0). What is its equation in slope-intercept<br> form?
lorasvet [3.4K]

Answer:

The answer is y = 4x - 8.

Step-by-step explanation:

☆Remember: m =  \frac{y_2 - y_1}{x_2 - x_1}

☆Slope-intercept: y = mx + b

---

☆We need to find the slope first. So just plug in according to the slope formula!

m =  \frac{0 - 8}{2 - 4}  =  \frac{ - 8}{ - 2}  = 4

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☆Now we need to find the y-intercept. We are going to plug in the slope and a set of coordinates to find the y-intercept.

y = mx + b \\ 8 = 4(4) + b \\ 8 = 16 + b \\   \frac{ - 16 =  - 16 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: }{ - 8 = b \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: }

---

☆Now all we need to do is plug in and we are done!

y = 4x - 8

▪Happy To Help <3

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3 years ago
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