Question

Given the vectors write the answer in component form below

Answer 1

see explanation

Explanation:

- 8a = - 8 < - 9, 4 > ( multiply each component by - 8 )

= < - 8(- 9), - 8(4) >

= < 72, - 32 >

a + b

= < - 9, 4 > + < - 8, - 7 > ( add corresponding components )

= < - 9 + (- 8), 4 + (- 7) >

= < - 9 - 8, 4 - 7 >

= < - 17, - 3 >