2 years ago

Consider the sequence -3, -7,-11, -15...

Mathematics

1 answer:

Alina [70]2 years ago

7 0

Yes, this is a function and a rule could be y=-4x+1

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Let a, b, c, and d be real numbers with a, c 6= 0. Prove that the lines y = ax+b and y = cx + d have the same x-intercept if and

Monica [59]

Step-by-step explanation:

We have got the lines :

$y=ax+b\\y=cx+d$

Both lines intercept the x-axis in the point :

$I = (i_{1} ,i_{2})$

In all point from x-axis the y-component is equal to 0.

$I=(i_{1},o)$

We replace the I point in the lines equations:

$0=a(i_{1})+b \\0=c(i_{1})+d$

From the first equation :

$0=a(i_{1})+b \\-b=a(i_{1})\\i_{1}=\frac{-b}{a}$

From the second equation :

$0=c(i_{1})+d\\ -d=c(i_{1})\\i_{1}=\frac{-d}{c}$

Then $i_{1}=i_{1}$

Finally :

$\frac{-b}{a}=\frac{-d}{c} \\\frac{b}{a}=\frac{d}{c} \\ad=bc$

y = ax + b and y = cx + d have the same x-intercept ⇔ad=bc

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Is there any app which helps solve pure maths questions?

allochka39001 [22]

Answer:

math a app good luck with the question

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If Lauren can jog 2 miles in 2/5 hours, she can jog _____ miles in 1 hour.

kenny6666 [7]

Answer:

1/5 miles

Step-by-step explanation:

2/5 divided by 2 = 1/5

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Which is the correct graph for *<br> y> 2х – 4<br> А)<br> ОА<br> Ос

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Answer:

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Step-by-step explanation:

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