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3 years ago

The equation of a line is y=-3x - 2. What are the slope and the y-intercept of the line?

Mathematics

1 answer:

Elodia [21]3 years ago

7 0

D, because everything in front of the x is the slope and everything after the x is the y- intercept

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Subtract 5y ^2−6y−115, y, squared, minus,

Tamiku [17]

Answer:

y^2+8y+16

Step-by-step explanation:

6y^2 +2y +5 - ( 5y^2 -6y-11)

Distribute the minus sign

6y^2 +2y +5 - 5y^2 +6y+11

Combine like terms

y^2+8y+16

5 0

3 years ago

Read 2 more answers

Four more than a number is no more than 13

hram777 [196]

Answer:

x+4≤13

just analyze the words carefully and their meanings, ex.: no more than = ≤

if you wish for the answer to this inequality:

x ≤ 9

just subtract 4 from both sides to leave x alone

3 0

4 years ago

Simplify 7.32a+2.1∙(2.7−18a)

tresset_1 [31]

7.32a + 2.1(2.7 -18a)
7.32a + 5.67 - 37.8a (multiply 2.1 to 2.7 and 18a)
5.67 - 30.48a (combine 7.32a and -37.8a since they are like terms)

6 0

3 years ago

BRAINLIEST AND 50 PTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

frozen [14]

Answer:

The answer is A. Because 11/9 is greater than 1, the product of 4/5 and 11/9 is greater than 4/5

9/9 is exactly 1. 11/9 is greater than 9/9, so 11/9 is greater than 1. If I added 4/5, the answer is larger than 11/9, therefore the answer is A.

6 0

4 years ago

Find the correct algebraic representation of the dilation shown below.

Otrada [13]

Given:

The diagram of triangle DEF and triangle D'E'F' on a coordinate plan.

To find:

The algebraic representation of the dilation.

Solution:

The vertices of triangle DEF are D(0,7), E(7,-7) and F(-7,-7).

The vertices of triangle D'E'F' are D'(0,2), E(2,-2) and F(-2,-2).

We know that, the dilation factor is:

$k=\dfrac{x\text{ or }y\text{ coordinate of the dilated point}}{x\text{ or }y\text{ coordinate of the corresponding original point}}$

For point D' the y-coordinate is 7 and for point D the y-coordinate is 2. So,

$k=\dfrac{2}{7}$

The rule of dilation is:

$(x,y)\to \left(kx,ky\right)$

$(x,y)\to \left(\dfrac{2}{7}x,\dfrac{2}{7}y\right)$

The algebraic representation of the dilation is $\left(\dfrac{2}{7}x,\dfrac{2}{7}y\right)$ .

Therefore, the correct option is b.

4 0

3 years ago