Algebra: Check please!!!
posted by Cheryl
1. Find the xintercept and the yintercept of 8x  2y = 24.
a. x= 7, y= 2
b. x= 4, y= 14
c. x= 3, y= 12
d. x= 7, y= 2
answer: a
2.
Find the x and y intercept of the line 2x + 3y = 18.
a. xintercept is 18, yintercept is 18
b. xintercept is 6, yintercept is 9.
c. xintercept is 2, yintercept is 3.
d. xintercept is 9, yintercept is 6.
amswer c

MathMate
They are both incorrect.
To find the xintercept of the line
L : ax + by + c = 0
you would set y=0, (that is, where the line intersects the xaxis) and solve for x in :
ax + b(0) + c =0
To find the yintercept, you would similarly set x=0, where L intersects the yaxis, and solve for y:
a(0) + by + c =0
Try the problems using the above methods and post your answers for checking if you wish. 
tyquan odom
what is the intercept form of 3x+3y=15
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