Plis kak beserta cara​

Jawab:

Jawaban ada dicara penyelesaian

Penjelasan dengan langkah-langkah:

1. m = 3 melalui satu titik

INGAT RUMUS = y – y1 = m (x – x1)

a. melalui titik (5, 9)

y – 9 = 3 (x – 5)

y = 3x – 15 + 9

y = 3x – 6

b. melalui titik (4, -7)

y – (-7) = 3 (x – 4)

y + 7 = 3x – 12

y = 3x – 12 – 7

y = 3x – 19

c. melalui titik (-6, 12)

y – 12 = 3 (x – (-6))

y – 12 = 3x + 18

y = 3x + 18 +12

y = 3x + 30

d. melalui titik (-7, -10)

y – (-10) = 3 (x – (-7))

y + 10 = 3 (x + 7)

y = 3x + 21 – 10

y = 3x + 11

2. Melalui titik (-12, 7) dan bergradien

a. m = 4

y – 7 = 4 (x – (-12))

y – 7 = 4 (x + 12)

y = 4x + 48 + 7

y = 4x + 55

b. m = 2/3

y – 7 = 2/3 (x – (-12))

y – 7 = 2/3 ( x + 12 )

y – 7 = 2/3 x + 8

y = 2/3x + 8 + 7|

y = 2/3 x + 15

c. m = -7

y – 7 = -7 (x – (-12))

y – 7 = -7 ( x + 12)

y = -7x -84 + 7

y = -7x -77

d. m = -5/4

y – 7 = -5/4 (x – (-12))

y – 7 = -5/4 (x + 12)

y = -5/4x – 15 + 7

y = -5/4 -8

3. a. Gradien 4 titik (3, -8)

y – y1 = m (x – x1)

y – (-8) = 4 (x – 3)

y + 8 = 4x – 12

y = 4x -12 – 8

y = 4x – 20

b. Gradien -2/3 titik (-6, -4)

y – y1 = m (x – x1)

y – (-4) = -2/3 (x – (-6))

y + 4 = -2/3 (x + 6)

y = -2/3x -4 -4

y = -2/3x -8