when you get this kind of exercise, you just need to check which equations resemble the graph
A. y= 6-4x
y= -4x+6
B. y= -4x+8-2
y= -4x+6
C. y= -4x-8-1
y= -4x-9
D. y= -4x+6
-> A, B and D are the same equations
-> the easiest way to find which graph is correct (A/B/D OR C), is to create the graph yourself using the drawn graph:
y= ax+b
a= negative (the line goes down)
to find the a you go 1 step to the left and look which point of the graph has the same x. in this exercise it's when y=4
a=-4
b= the y-coordinate of the point where the graph cuts the y-axis.
b=6
-> graph shown in picture is y= -4x+b
-> graph A/B/D is correct
-> C is does not represent this line
Answer:
slope = - 1
Step-by-step explanation:
Calculate the slope m using the slope formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (3, - 4) and (x₂, y₂ ) = (- 2, 1)
m = 
= 
= - 1
If we use the formula, which is
, Then it would give us y = 4x - 10! Hope this helped!
Answer:
4 1/4 gallons
Step-by-step explanation:
The amount of gas in the tank is 1/4 of 17 gallons.
1/4 * 17 gallons = 0.25 * 17 gallons = 4.25 gallons = 4 1/4 gallons
First, let's see how much sand the truck can carry in one trip. We do this by finding the volume of the bed. We do this by multiplying the length*width*height. This is equal to 8*5*3 = 120 cubic feet.
Now, we divide 300 by 120 to see how many trips the truck will need to make. This is equal to 2.5. Because the truck can not make half a trip, the truck will need to make 3 trips.
