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3 years ago

The graph shows a system consisting of a linear equation and a quadratic equation.

Mathematics

1 answer:

Lorico [155]3 years ago

3 0

Answer:

(3, 4) and (5, 12)

Step-by-step explanation:

The points where the two curves intersect are the solutions to the system of equations:

(3, 4) and (5, 12)

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If f(x) = 2x + 3, what is f(–1)?

Helen [10]

Answer:

Normally, sequences don't go behind 1, but let's see for this one.

f(-1) = 1

Step-by-step explanation:

Let's sub for -1 in x.

f(-1) = 2(-1) + 3.

f(-1) = -2 + 3

f(-1) = 1

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3 years ago

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Y=x+1 y=x^2-1 please help i don't understand

ololo11 [35]

ANSWER

The solution is

$(x=1,y=2),(x=2,y=3)$

EXPLANATION

We have

$y=x+1---(1)$

and

$y=x^2-1---(2)$

Let us substitute equation (1) in to equation (2). This gives us,

$x+1=x^2-1(2)$

We rewrite this as a quadratic equation as the highest degree is 2.

$x^2-x-1-1=0$

This implies that

$x^2-x-2=0$

we factor to obtain,

$x^2+x-2x-2=0$

$x(x-1)-2(x-1)=0$

$(x-1)(x-2)=0$

This means,

$(x-1)=0\:\: or\:\:(x-2)=0$

$x=1\:\: or\:\:x=2$

We substitute this values into any of the above equations, preferably equation (1)

When, $x=1$ , $y=1+1=2$

When, $x=2$ , $y=2+1=3$

The solution is

$(1,2),(2,3)$

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3 years ago

Could someone help me for 96 points

frutty [35]

A is .5
B is 8
C is 16
D is 8,800
Check to see if my answers are right. I hope this helps!

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Scorpion4ik [409]

In grade points 128 or 150 would be about 85.33%
If its a math problem, then its 192.

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3 years ago

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Paul [167]

Answer:

16cm

Step-by-step explanation:

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