Linear equations are written as y = C1x + C2 where C1 & C2 are
constants. They are graphed by plugging in numbers for y or x and solve
for the other. For example if you have an equation y = 3x + 6 you then
for y = 1 you have 1 = 3x + 6 -> x = -5/3 you then take the two
coordinates (-5/3,1) and plot the point do this for further numbers and
connect the points with a straight line. Shifting the graph up or down
will change the value of C2 and shifting the graph left or right will
change C1.
X = -7
3 • 7 = 21
-3 • (-7) = 21
If you multiply two negative numbers you’ll end up with a positive. Thus, - 3 (-7) = 21.
Answer:
4736
Step-by-step explanation:
1) 100 divided by 5 is 20
2) 20 times 3 is 60
3) 60 times 79 is 4740
4) 4740 subtract from 4 is 4736
5) Answer is 4736
Hello there! The correct answer is B.
Note that in functions, x values cannot repeat. The points are given as (x, y) values, and you can see in the second option there are two -7s in the x values, making it not a function!
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We can make an equation that would help this. X will be the discount rate.
4x=3.60
Now, we need to solve the equation to find what X is.
Let's divide each side by 4.
x=.9
So, we know that the item was sold for 90% of what it was before, meaning that it has a 10% discount.