Algebra Unit 3 Review: Functions, Equations and Inequalities

Solve for y:
5x + y = -10

• y = 5x + 10
• y = -5x - 10

Solve for y:
y + 2 = 3x

• y = 2x + 3
• y= 3x +2
• y= 3x -2
• y= 6x

Solve for y:
2x + 2y = 6

• y = - x + 3
• y = x + 3
• y = 2x +6
• y = - 2x + 6

Solve for y:

x + y = 4

• y = x + 4

• y = -x + 4

• x = -y + 4

• x= y - 4

When converting the equation

-x + 2y = -10

into slope-intercept form, the first step to solve for y would be to ____________.

• add x to each side

• subtract x from each side

• add 2y to each side

• subtract 2y from each side

After subtracting 2x from each side, the resulting equation is shown below:

2x - 3y = -9

- 3y = -2x - 9

The final step to solve for y would be to ____________.

• divide each term by -3

• divide each term by 3

• add 3 to each side

• subtract 3 from each side

Solve for y.

• y= -5x+5

• y= -x+5

• y= x+1

• y= -x+1

Convert the equation into slope-intercept form.

x + 5y = -25

• y = -⅕x - 5

• y = -x - 5

• x = 20

• y = 27, 239, 430

What is the domain of the function graphed on the grid?

• -4 ≤ x < 5

• -4 ≤ x ≤ 5

• -3 ≤ x < 3

• -3 < x ≤ 3

What is the domain of the graph?

• -7 ≤ x < 5

• -3 ≤ x < 1

• -3 ≤ y < 1

• -7 ≤ y < 5