7. find the range of the function f(x) = 4x – 1 for the domain {–1, 0, 1, 2, 3}. (1 point)

{–5, –3, 0, 7, 11}

{–5, –4, –3, –2, –1}

{–11, –7, –3, 1, 5}

{–5, –1, 3, 7, 11}

8. find the slope of the graph of the following: 9x – 3y = 15 (1 point)

–3

3

–1/3

1/3

9. how many solutions does this system have?
x – 2y = 2
y = –2x + 5 (1 point)

infinitely many solutions

no solutions

two solutions

one solution

10. solve the system by either substitution or elimination.

3x – 5y = 21
2x + y = 1 (1 point)

(2, –3)

(2, 3)

(–2, –1)

(–2, 1)

11. what is the slope-intercept form of the equation 4x + 2y = 6? (1 point)

y = 2x + 3

y = 2x – 3

y = –2x – 3

y = –2x + 3

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

Luis has a cooler filled with cans of soda.for every 5 cans of coke there are 3 cans of sprite.if there are 25 cans of coke, how mant cans of sprite are there?

Our star pitcher, foster enlight, can throw a pitch so fast that it gets to the catcher’s mitt before it leaves foster’s fingers! if the team wins a game then the probability that foster was pitching is 0.8 but only if foster had at least one day’s rest since his last pitching assignment. if foster does not have a day off and the team still wins, the probability that foster was pitching drops by half of what it was on the previous day. if the team wins three games in succession from the toronto tachyons and foster pitched in game #2, what is the probability that he pitched in one or more of the other games? (assume that foster did not pitch on the day before the first game of this three game series.)