Algebra 1 - End of Year 1

Solve

100

x + 9 = -16

-25

200

- x/5 = 13

-65

300

7x - 6 = 25x

-1/3

400

3(2x - 4) = 2 - 5(7 - x)

-21

500

Solve for y: 6x + 2y = 1

y= -3x + 1/2

Combine Like Terms

100

8x - y + 2x + 3y

10x + 2y

200

12x - y + y

12x

300

-2x - 4x + 10y - 2x

-8x + 10y

400

3/5x + 4y - 2/10x - y

4/10x + 3y or 2/5x + 3y

500

 -2y + 12x - 3/5y + 2/10y

12x - 24/10y or 12x - 12/5y

Standard form to slope intercept Form

100

2x + 3y = 4

y = -2/3x + 4/3

200

-5x + 2y = 12

y = 5/2x + 6

300

-x - y = 0

y = -x + 0  OR  y = -x

400

3x-4y=-20

y=3/4x+5

500

x - 3y = 6

y=1/3 x - 2

Parallel and Perpendicular Lines

100

Are these lines parallel?

y = 2x + 7

y = 12x + 7

No

200

Are these lines parallel?

y = 4x - 6

y = 4x +3

Yes

300

Parallel, Perpendicular or neither?

y = 2x - 7

y = -1/2x +4

Perpendicular

400

Parallel, Perpendicular or Neither?

y = 7x - 4

y = -7x - 4

Neither

500

Parallel, perpendicular or neither?

y = x

y = -x

Perpendicular

Exponents

100

5⁰

1

200

(4x^-2) / y^-8

(4y^8)/x^2

300

Evaluate the expression when x=2, y=-3, and z=-5.

x⁰y²

9

400

m^1/2

sqrt(m)

500

(r^3t^-7)/t^5

(r^3)/t^12