Algebra 1

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10 points

These are the number of text messages students send to each other on a daily basis

25, 23, 17, 15, 19, 21, 28, 30, 26, 28

Find the median of these scores.

10 points

Solve the inequality –3x + 8 < 11.

x > −1

x < 1

x < – 1

x > 1

10 points

Which of these is equal to 5(3 − x)?

5x – 15

x – 15

15 – 5x

5 – 3x

10 points

Find the slope of the line that passes through the points (–4, 2) and (6, 6).

5/2

2/5

–2/5

–5/2

10 points

Which of the following is equal to m^–9 · m^9 ?

m^18

m^ –18

10 points

A family membership at a tennis club costs a flat fee of $250, plus $35 per person. If n stands for the number of people, then the membership cost is modeled by

285n

250 + 35 + n

35n + 250

250n + 35

10 points

Lisa’s local bakery has 4 different kinds of cake;

Strawberry 8
Chocolate 16
Carrot 5
Red velvet 11

If Lisa is going to buy a cake for her daughter's birthday, what is the probability that she will buy a chocolate cake for the party?

16/5

2/5

1/2

1/5

10 points

Suppose 2(2 − y) = 3x. When y = 8, what is the value of x ?

20/3

−4

–20/3

10 points

Find the intersection of the lines y = 2x + 1 and y = –5x − 6.

(–1, 2)

(–1, −1)

(1, 2)

(1, 1)

10.

10 points

When foiled, which of the following gives you x^2 + 2x − 8 ?

(x− 4)(x−2)

(x−4)(x+2)

(x+4)(x+2)

(x+4)(x−2)

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