Answer:
8/5
Step-by-step explanation:
To find the slope given two points
m = (y2-y1)/(x2-x1)
= (4- -4)/(1 - -4)
= (4+4)/(1+4)
=8/5
Answer:
12 is to the right of -15 on a number line.
Step-by-step explanation:
Hope this helps! - CJ
<span>Y is directly proportional to x^2. It could be represented by the expression:
y </span>α x^2
We can make it into an equality by inserting the proportionality constant, k.
y = kx^2
k would be constant for any value of y with a corresponding value of x. We solve the problem by this concept as follows:
y1/(x1)^2 = y2/(x2)^2
10/(x1)^2 = y2/(x1/2)^2
10/4 = y2
Therefore, when the value of x is halved, y is equal to 10/4.
Answer:
See explanation
Step-by-step explanation:
Let x be the number of spade shovels, y -the number of flat shovels and z - the number of square showels sold that day.
The store keeps an inventory of 80 shovels, then
x+y+z=80
The store always buy twice as many spade shovels as square, so
x=2z
The total cost of all shovels is
16x+9.60y+12.80z=1,072
a) The system of three equations is
b) In matrix form this is
c) The determinant is
d) Find three determinants:
So,
e) If the store doubled all prices and inventory, then the new matrix is
Answer:
The answer to your question is y = x - 5
Step-by-step explanation:
Data
Point = (4, -1)
line ║ to y = x - 1
Process
1.- Find the slope. The slope is the coefficient of the x.
y = 1x - 1
slope = m = 1
2.- Identify the values x1 and y1
x1 = 4 y1 = -1
3.- Find the equation of the line
y - y1 = m(x - x1)
-Substitution
y + 1 = 1(x - 4)
-Solve for y
y + 1 = x - 4
y = x - 4 - 1
-Result
y = x - 5
