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