Question

1.

according to this property, x + 0 = x

a. Commutative

b. Associative

c. Distributive

d. Identity

e. Inverse



2.

The proper sequence to use in solving 3x - 2 = 60 is:


a. Divide by 3 . add 2

b. add 2 . Divide by 3

c. Multiply by 3 . Subtract 2

d. Subtract 2 . multiply by 3


3.

-3 is a solution of y > -2


a. True

b. False


4.

Write the given equation in slope-intercept form, y = mx + b, by solving for y
4x - 2y = 10


a. y = 2x - 5

b. y = -4x - 5

c. y = 2x + 5

d. y = -2x - 5


5. The point (3,0) is a solution of the equation y = 2x - 11


a. True

b. False


6.

Calculate the slope of the points (-2,-1) and (3,4)

a. 1

b. 2

c. 3

d. 4


7.

When solving a system of equations, you are finding the _______.

a. place where the slope rises

b. place where the slope runs

c. intersection point


8.

solve the following system of linear equations

3x + 2y = 10

2x + 3y = 15/12

a. no solution

b. y = (-3/2)x + 5

c. x = 3, y = -1/2

d. x = 3, y = 1/2

please help

Answer 1

1. D

2. D

I don't know the answer to number 3 sorry.

Answer 2

Answer with explanation:

1. x+0=x

0 is the identity element.When number is added to identity the resultant is number.

Option D : Identity

2.

3x-2=60

Adding 2 on both sides

→3x-2+2=60+2

→3x=62

Dividing by 3, on both sides

`x=(62)/(3)`

Option (B.)→ Add 2 . Divide by 3

3.

y> -2,

y=(-2, Infinity)

So, -3 is not the solution of ,y>-2.

Option A: False

4.

The equation in slope-intercept form, is, y = mx + b.

4x-2y=10

4x=2y+10

2y=4x-10

Dividing by 2, on both sides

y=2x-5

Option A:→y=2x-5

5.

The equation of line is

y=2x-11

We have to check whether point (3,0) lies on the line or not.

LHS=y=0

RHS=2x-11

=2 ×3-11

=6-11

= -5

So, point (3,0) does not lie on the line,→y=2x-11.

Option B : False

6.

Slope of line joining the points (-2,-1) and (3,4) is

`m=(y_(2)-y_(1))/(x_(2)-x_(1))\\\\m=(4+1)/(3-(-2))\\\\m=(5)/(5)\\\\m=1`

Slope=1

Option A

7.

When solving a system of equations, you are finding the

Option C: Intersection point

8.

`3x + 2y = 10------(1) \\\\2x + 3y = (15)/(12)-----------(2)\\\\1+2\\\\5x+5y=(135)/(12)\\\\x+y=(27)/(12)-----(3)\\\\1-2\\\\x-y=(105)/(12)-----(4)\\\\ 3+4\\\\2x=(132)/(12)\\\\2x=11\\\\x=(11)/(2)\\\\y+(11)/(2)=(27)/(12)\\\\y=-(11)/(2)+(27)/(12)\\\\y=(-39)/(12)`