Answer: 49
Step-by-step explanation:
if you subtract 8 from 57 you’ll get 49, and 49 +8= 57
Let's set these two numbers as 'a' and 'b'
Now, let's set up equations based on the information known:
- the sum of the two numbers is 52 --> a + b = 52
- the difference is 28 --> a - b =28
Equations
- a + b = 52 -- equation 1
- a - b = 28 -- equation 2
Solve:
(Equation 1) + (Equation 2)
2a = 80
a = 40 -- equation 3
(Equation 3)
40 + b = 52
b = 12
So a = 40 and b = 12
Hope that helps!
1. The y-intercept of a line is on a graph where a line crosses through the y axis.
2. b is the y- intercept and m is the slope. For example something using y=mx+b could be written like y=3x+2 if the y-intercept is 2 and the slope is 3.
3. The slope is what describes the direction and steepness of a line on a graph. Rise and run mean that when you find a slope you must first find the rise over run. You must go from one dot on a graph to the next by first going up or down to where that you are on the same number on the y axis that the next point is, next go on the x axis and go left or right until you have reached the next point. For example if you went up 3 and over 2, the rise would be 3 and the run would be 2. The slope in that situation would be 3/2.
Hope this helps you.
Answer:
Step-by-step explanation:
you have to explain more
Answer:
-4/5
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-10-(-2))/(9-(-1))
m=(-10+2)/(9+1)
m=-8/10
simplify
m=-4/5
