Test 1. Curves with several terms

 1. Complete the table for

y = x² + x + 1.

 а)  (–4, 12), (–3, 8), (–2, 4), (–1, 2), (0, 2), (1, 4), (2, 8);     
 b)  (–4, 14), (–3, 8), (–2, 4), (–1, 2), (0, 1), (1, 4), (2, 8);     

 c)  (–4, 14), (–3, 8), (–2, 4), (–1, 2), (0, 2), (1, 4), (2, 8);     

 d)  (–4, 14), (–3, 8), (–2, 4), (–1, 2), (0, 2), (1, 4), (2, 6).

 2. Complete the table below then draw the curve

y = x² + x.

 а)  (–3, 6), (–2, 1), (–1, 0), (0, 0), (1, 2), (2, 6), (3, 12);     

 b)  (–3, 6), (–2, 2), (–1, 0), (0, 0), (1, 2), (2, 6), (3, 12);     

 c)  (–3, 6), (–2, 2), (–1, 0), (0, 0), (1, 2), (2, 5), (3, 12);     

 d)  (–3, 6), (–2, 2), (–1, 0), (0, 0), (1, 2), (2, 6), (3, 14).

 3. Complete the table below then draw the curve

y = x² + 2x.

 а)  (–3, 3), (–2, 0), (–1, –1), (0, 0), (1, 3), (2, 8), (3, 13);     

 b)  (–3, 3), (–2, 0), (–1, –1), (0, 0), (1, 5), (2, 8), (3, 15);     

 c)  (–3, 3), (–2, 1), (–1, –1), (0, 0), (1, 3), (2, 8), (3, 15);     

 d)  (–3, 3), (–2, 0), (–1, –1), (0, 0), (1, 3), (2, 8), (3, 15).

 4. Complete the table then draw the curve

y = x² – 2x.

 а)  (–3, 14), (–2, 8), (–1, 4), (0, 2), (1, 2), (2, 4), (3, 8);     

 b)  (–3, 14), (–2, 6), (–1, 4), (0, 2), (1, 2), (2, 4), (3, 8);     

 c)  (–3, 14), (–2, 8), (–1, 4), (0, 2), (1, 3), (2, 4), (3, 8);     

 d)  (–3, 14), (–2, 8), (–1, 4), (0, 2), (1, 2), (2, 4), (3, 6).

 5. Read off the value of y = x² – 2x² from your curve when

x = 1,5.

 а)  0.7;      b)  0.75;     

 c)  0.5;      d)  0.85.

 6. Complete the table then draw the curve

y = x² – x + 2.

 а)  (–3, 14), (–2, 8), (–1, 4), (0, 2), (1, 2), (2, 6), (3, 8);     

 b)  (–3, 14), (–2, 8), (–1, 3), (0, 2), (1, 2), (2, 4), (3, 8);     

 c)  (–3, 12), (–2, 8), (–1, 4), (0, 2), (1, 2), (2, 4), (3, 8);     

 d)  (–3, 14), (–2, 8), (–1, 4), (0, 2), (1, 2), (2, 4), (3, 8).

 7. Read off the value of y = x² – x + 2 from your curve when

x = 0,5.

 а)  1.25;      b)  1.5;     

 c)  1.75;      d)  1.7.

 8. Using x-values from –4 to 2, complete a table then draw

y = x² + 3x – 2

(make sure you draw the axes big enough).

 а)  (–4, 2), (–3, –2), (–2, –4), (–1, –4), (0, –2), (1, 2), (2, 6);     

 b)  (–4, 2), (–3, –2), (–2, –4), (–1, –4), (0, –1), (1, 2), (2, 8);     

 c)  (–4, 2), (–3, –1), (–2, –4), (–1, –4), (0, –2), (1, 2), (2, 8);     

 d)  (–4, 2), (–3, –2), (–2, –4), (–1, –4), (0, –2), (1, 2), (2, 8).

 9. Find the value of these when x = 3:

x² + x

 а)  10;      b)  12;     

 c)  14;      d)  8.

10. Find the value of these when x = 3:

x² + 2x

 а)  15;      b)  12;     

 c)  17;      d)  13.

11. Find the value of these when x = –4:

x² + x

 а)  10;      b)  16;     

 c)  12;      d)  14.

12. Find the value of these when x = –1:

x² – x

 а)  1;      b)  2;     

 c)  4;      d)  3.