Tolong dong jawab semuanya pake cara

1. gradien garis = m
A (10, 0), B (0,-5)

m = (y2 - y1) ÷ (x2-x1)
=(-5 - 0) ÷ (0- 10)
= -5 ÷ -10 = 1/2

2.
[tex] \frac{8x}{3} \times \frac{6}{2x} \\ = 4 \times 2 \\ = 8[/tex]



3. X = 2
Y = 2

himpunan X ke Y =
[tex]2^{2} = 4[/tex]
4.-2(-q-r) = 2q +2r =2 (q+r)




5.buku = x , pensil = y
[tex]7x + 5y = 13.000 ( \times 2) \\ 9x + 2y = 14.500 ( \times 5)\\ \\ 14x + 10y = 26.000 \\ 45x + 10y = 72.500 \\ - 31x = - 48.500 \\ x = 48.500 \div 31[/tex]

ini^ saya ga nemu jawabannya heheh