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ehidna [41]
3 years ago
6

Solve the system of equations. y = –4x y = 2x^2 – 15x

Mathematics
1 answer:
dexar [7]3 years ago
7 0

Answer:

X=0, x= 11/2. y=0, y=-22

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Y = 2x - 2 , y = 2x + 9 . what's the solution ?
beks73 [17]
If you solve it, you get 2=9, which is incorrect. That means there's no solution.
3 0
4 years ago
Read 2 more answers
Which equation represents y = -x2 - 2x + 3 in vertex form?
Georgia [21]

Answer:

y = -(x + 1)² + 4

Step-by-step explanation:

y = -x² − 2x + 3

First, factor the leading coefficient from the first two terms.

y = -(x² + 2x) + 3

Complete the square.

y = -(x² + 2x + 1 − 1) + 3

Simplify and factor.

y = -(x² + 2x + 1) + 1 + 3

y = -(x + 1)² + 4

6 0
4 years ago
Write an equation of the form y = mx for the line shown below.
djyliett [7]

Answer:

y = -3x

Step-by-step explanation:

To get slope intercept, you divide both y values by both x values like this

\frac{y_2 - y_1}{x_2 - x_1}

In this case this will be \frac{(-3 - 6)}{(1 - (-2))}

This will become \frac{-9}{3}

Divide those two to get -3, and now you get your slope intercept.

7 0
3 years ago
-7-14how do i simplify my answer into a integer
Airida [17]

Hello!

Note that we have two negative numbers: -7 and -14.

To simplify it, we can add these numbers, look:

(-7)+(-14)

As both are negative, we'll keep the sign and sum the numbers, look:

(-7)+(-14)=-(7+14)=-21

As -21 is an integer, this is your simplified answer.

8 0
2 years ago
Describe and correct the error in finding the solution to 8p (>/=) -7
erik [133]
Given solution:               should be solution.

8p (>/=) -7          8p (>/=) -78p (>/=)-7           8p (>/=) -7       SAME
8p/8 (=) -7/8       8p/8 (>/=) -7/8 DIFFERENT
p (=) -7/8              p (>/=) -7/8    DIFFERENT

The error in the given solution was that the inequality sign > was taken out of the equation. It should not be because the expression is an inequality. p can be any number that is greater than or equal to -7/8. It is not limited to only -7/8. 
8 0
4 years ago
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