SOLUTION: Find the equation of the line with x-intercept 4 and y-intercept 8. A correspondence between two sets D and R that assigns to each member of D exactly one element of R is a(n)_

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Question 715201: Find the equation of the line with x-intercept 4 and y-intercept 8.
A correspondence between two sets D and R that assigns to each member of D
exactly one element of R is a(n)__________

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

1.

if x-intercept 4, that is a point (4,0)
and if y-intercept 8,that is a point (0,8)
now we can find equation of the line that passes through these two points

Solved by pluggable solver: FIND EQUATION of straight line given 2 points
hahaWe are trying to find equation of form y=ax+b, where a is slope, and b is intercept, which passes through points (x1, y1) = (4, 0) and (x2, y2) = (0, 8).
Slope a is a+=+%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29+=+%288-0%29%2F%280-4%29+=+-2.
Intercept is found from equation a%2Ax%5B1%5D%2Bb+=+y%5B1%5D, or -2%2A4+%2Bb+=+8. From that,
intercept b is b=y%5B1%5D-a%2Ax%5B1%5D, or b=0--2%2A4+=+8.

y=(-2)x + (8)

Your graph:





2.
a function