The picture in the attached figure
step 1find the equation of the line of the graph
let
A (-4,0) B(0,2)
slope m=(y2-y1)/(x2-x1)------> m=(2-0)/(0+4)----> m=1/2----> m=0.5
with m=0.5 and point B (0,2)
y-y1=m*(x-x1)-----> y-2=(0.5)*(x-0)-----> y=0.5x+2
step 2find the solution
<span>
a) f(x) = 0.2x - 4----> the </span>function not represent the graphed line<span>
b) f(x) = 0.5x + 2----> </span>
the function represent the graphed line<span>
c) f(x) = x + 2</span>--> the function not represent the graphed line<span>
d) y – 3 = (x – 2)---> y=x+1---> </span>the function not represent the graphed line<span>
e) y – 1 = 0.5(x + 2)</span>
-----> y=0.5x+1+1---> y=0.5x+2--
---> the function represent the graphed line
therefore
the answer is<span>
f(x) = 0.5x + 2and</span>
y – 1 = 0.5(x + 2)
Answer:
$64.15
Step-by-step explanation:
1.08(99(1-0.4))
99x0.6=59.4
59.4x1.08= 64.152
Answer:
1.5 inches
Step-by-step explanation:
(10+2x)(14+2x) = 221
4x² + 48x - 81 = 0
4x² + 54x - 6x - 81 = 0
2x(2x + 27) - 3(2x + 27) = 0
(2x + 27)(2x - 3) = 0
x = -27/2, 3/2
x = 3/2 or 1½ or 1.5 inches
Answer:
k = - 
Step-by-step explanation:
Given that x varies directly with y then the equation relating them is
x = ky ← k is the constant of variation
To find k use the condition x = - 3 when y = 12
- 3 = 12k ( divide both sides by 12 )
= k , that is
k = - 
Answer:
1/3
Step-by-step explanation: