Answer:
Hi, Hope this will help :-)
Answer:
No
Step-by-step explanation:
Direct variation: two variables, one variable is a constant multiple of another variable
y = k x .... k constant
-x+4y=-2
4y = x - 2
y = 1/4 x -1/2 ..... y = k x + b y is not a simple multiple of x
Answer:
Step-by-step explanation:
Let the equation of the cosine function is,
y = Acos(Bx)
From the graph attached,
A = Amplitude = 
= 1
B = 
B = 
B = 
B = 4
Therefore, equation of the cosine wave given in the graph will be,
y = 1.Cos(4x)
y = Cos(4x)
Answer:
see below
Step-by-step explanation:
2x ≥ 4
Divide by 2
2x/2 ≥ 4/2
x ≥ 2
-x+7<-6
Subtract 7 from each side
-x+7-7<-6-7
-x < -13
Divide each side by -1, remembering to flip the inequality
x > 13
y>-x+3
This is a line with slope -1 and y intercept 3
This is a dotted line since there is no equals sign and graph above