Algebra 2 SAT Math

What is the sum of the solutions of the 2 equations below? 8x = 12 2y + 10 = 22

• 9

• 10

The phrase "which expresses x" or "which gives x" means ...

• Add them up

• Substitute x into the equation

• Solve for x

• Multiply then divide x

Simplify:
(2x²+4x+7)-(x²+3x+4)

• x²+x+3

• x+x+3

• 2x+x+3

• x²-x+3

Simplify:
2⁴x 2⁶

• 2¹⁰

• 2²⁴

• 1023

• 2

What is the value of y in the solution to this system of equations? 3x - 5y = 22 y = -5x + 32

Mathematical Equivalence

ON

Graph the solution to the system. The first equation has been plotted for you.

y = -3x-3

y= 4x +4

Which of the following represents the equation of the line with an x-intercept of 5 and y intercept of 6?

• y - 6 = (-6/5)(x - 5)

• y - 6 = (-5/6)(x - 5)

• y - 6 = (-6/5)x

• y - 6 = (-5/6)x

Which of the following statements is equivalent to the statement -4 < x ≤ 2

• x > -2 and x ≤ 1

• x < -2 and x ≥ 1

• x ≥ -2 and x < 1

• x ≤ -2 and x > 1

5x - y = 11

2x - 2y = 9

Based on the system above, what is the value of 3x + y?

• -2

• 0

• 2

• 4

It costs Emma P dollars to make each of her custom bracelets, which she sells for m dollars a piece. She makes a profit of $60 if she makes and sells 5 of these bracelets, but she only makes a profit of $10 if she makes 5 bracelets but only sells 4 of them. How much does it cost Emma to make each bracelet?

• $36

• $38

• $48

• $50