Answer:
2. y intercept is at 0 because it needs to go through the origin if it is proportional
3. y intercept is positive the line crosses above 0. when y intercept negative the line crosses below 0
4. y intercept is 0
5. y intercept is 1.8. it represents the time remaining as its starting timer.
6. (0, 1). y intercept is 1
7. y intercept is -4
8. y intercept is 0
9. 80m
52² − 48² = (2704 + 2304)(2704 − 2304) = 2,003,200
52² − 48² = (52 + 48)(52 − 48) = 100 * 4 = 400
a² - b² = (a +b)*(a-b)
52² − 48² = 2704 − 2304 = 400
<span>52</span>²<span> − 48</span>²<span> = (52 − 48)</span>²<span> = (4)</span>²<span> = 16</span>
Part 1: 2×2×3×3×3=108 (c)
Part 2: 10×9×26×25×4=234000 (c)
Part 3: 10×9×8×7×6×5×4×3×2×1÷(3×2×1)=604800 (d)
Part 4: 11C4=11×10×9×8÷(4×3×2×1)=330 (a)
Part 5: ⅕=20% (c)
Part 6: 100-2.9=97.1 (d)
