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melamori03 [73]
2 years ago
5

Bài 1: Cho hàm số y = (m-1)x + 2 (1)

Mathematics
1 answer:
blsea [12.9K]2 years ago
8 0

Answer:

i dont understand

Step-by-step explanation:

can some translate it

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Please help explanation if possible
posledela

Answer:

y =3x - 5

Step-by-step explanation:

Well one of the way to do this question is the formula given below your question, but for me, i rather do it this way

OK they gave u y=3x - 12

And they say another line is parallel, once u see the word parallel means they have the same angle, same slope, same gradient ( sorry if I give u the wrong terms, since I learn mine in Malay)

So first u got to understand the slope-intercept form

y = mx + c

y is your y coordinate

x is your x coordinate

m is your gradient ( as in how much the line slants)

c is the y - intercept, as in, if u draw a graph, the y-coordinate where your line touches the y-axis (the vertical line)

So since the say the both lines are parallel, so both of their "m" is the same that is 3. Why? Cuz just compare

y = mx + c

y = 3x - 12

Therefore the m is 3

Therefore u alredy got your first value, so put it in your slope intercept form

y = mx + c

y = 3x + c

Now how to find c? Very easy, just put in the value of y and x from the coordinate ( that the line youre finding is on) they gave u, just put the value in

They gave u

(1, - 2)

So when x = 1, y = - 2

Therefore put it in

y = 3x + c

-2 = 3 (1) + c

c = - 5

Since now u have your m and c value, your slope intercept form is done, just put it in

y = mx + c

y = 3x + (-5)

y = 3x -5

6 0
2 years ago
1-1=............... HELP!!!!!!!!!!!!!!!!!!
Verizon [17]
1-1=0 lol how do u not know this ???
7 0
3 years ago
Read 2 more answers
Solve for x<br> logx+log(x-4)=2log5
sleet_krkn [62]
\log{x} + \log{(x-4)} = 2 \log{5}\\\\&#10;\log{\big(x(x-4)\big)} = \log{5^2}\\\\&#10;\log{(x^2-4x)} = \log{25} \\\\&#10;x^2-4x = 25\\\\&#10;x^2-4x-25=0 \\\\&#10;x = \frac{4 \pm\sqrt{16+100}}{2} \\\\&#10;x = \frac{4\pm2\sqrt{29}}{2} \\\\&#10;x = 2 \pm \sqrt{29} \\\\&#10;\text{But } x > 0 \implies x = 2 + \sqrt{29}
8 0
3 years ago
Read 2 more answers
PLZ HELP
Zigmanuir [339]
I’m thinking 12. 5 times 12 is 60 which is divisible by 4 and 6. 1 times 12 is 12 which is divisible by 2. Hope that helps
8 0
2 years ago
Number 17 pls help me it’s my last question plss
Sonbull [250]

Answer:

C

Step-by-step explanation:

7 0
3 years ago
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