A scaled copy is a copy of an figure where every length in the original figure is multiplied by the same number. For example, triangle DEF is a scaled copy of triangle ABC. Each side length on triangle ABC was multiplied by 1.5 to get the corresponding side length on triangle DEF.
Answer:
A. y=-5/3x+1
Step-by-step explanation:
Answer:
The right answer is, -420
Step-by-step explanation:
Because we use common factor:
60 (x - 15)
We multiply for each term:
60 (x) - 60 (15)
60 (8) - 60 (15)
We solve:
480 - 900 = -420
Answer:
<em>f(g(x)) = 8x² + 18x - 8 </em>
Step-by-step explanation:
f(x) = 2x² - 5x - 15
g(x) = - 2x - 1
f(g(x)) = y
y = 2( - 2x - 1 )² - 5( - 2x - 1 ) - 15 =
2(4x² + 4x + 1) + 10x + 5 - 15 =
8x² + 8x + 2 + 10x + 5 - 15 =
<em>f(g(x)) = 8x² + 18x - 8</em>
An arrow to the left and a closed circle on -4 is:
x≤-4 or if you prefer:
x=(-oo,-4]
