What is the y intercept of a graph containing the two points (3,1) and (7,-2)?
1 answer:
Answer:
3.25
Step-by-step explanation:
The slope of the line is ∆y/∆x = (-2-1)/(7-3) = -3/4.
The point-slope form of the line with slope m through (h, k) is ...
y -k = m(x -h) . . . . . . . . . . we have m=-3/4, (h, k) = (3, 1)
y -1 = -3/4(x -3)
The y-intercept is the point on the line where x=0. For x=0, the value of y is ...
y = -3/4(-3) +1 = 9/4 +4/4
y = 13/4 = 3 1/4
The y-intercept is 3 1/4.
You might be interested in
There is 20% decrease in the number of members.
Step-by-step explanation:
Given,
Members last year = Old value = 30
Members this year = New year = 24
Change = New value - Old value
Change = 24 - 30
Change = -6
The negative sign indicates the decrease.
Decrease percent =
Decrease percent =
Decrease percent =
Decrease percent = 20%
There is 20% decrease in the number of members.
Keywords: percentage, division
Learn more about division at:
#LearnwithBrainly