Answer:
Step-by-step explanation:
1 yd = 3 ft...so 1 1/2 yds = 4.5 ft
12.23 / 4.5 = 2.717 rounds to 2.72 per foot <==
We have to compute: Δ y / Δ x.
The interval is [ 2, 5 ] and y = 4 x - 9.
y 1 = 4 · 2 - 9 = 8 - 9 = - 1
y 2 = 4 · 5 - 9 = 20 - 9 = 11
Δ y / Δ x = ( y 2 - y 1 ) / ( x 2 - x 1 ) =
= ( 11 - ( - 1 ) ) / ( 5 - 2 ) = ( 11 + 1 ) / 3 = 12 / 3 = 4
Answer:
Δ y / Δ x = 4
Answer:
d = 3x²+ 4x - 7
C'est la réponse j'espère que ça aide.