Question

Find the x and y intercepts of the line: 5x + 4y = 20.

Answer 1

http://www.mathsisfun.com/algebra/finding-intercepts-equation.html

Answer 2

@jdoe0001

Answer 3

well.. as the site says.... set x=0 and then set y= and solve for the other variable

Answer 4

i still dont know how

Answer 5

well.. you may want to brush up your linear simplification material then

Answer 6

x-intercept
5x + 4(0) = 20. solve for "x"

y-intercept
5(0) + 4y = 20. solve for "y"

Answer 7

wait is it (0,5) (4,0)??

Answer 8

hmm well.. what did you get for "x"?

Answer 9

those are the only ones I got

Answer 10

well.... yeap , those are it

Answer 11

x=4

Answer 12

for the x intercept?

Answer 13

x int its 4,0
y int is 5,0

Answer 14

@jdoe0001

Answer 15

hello? yes??

Answer 16

\(\bf 5x + 4(0) = 20\implies 5x+0=20\implies 5x=20\implies x=\cfrac{\cancel{ 20 }}{\cancel{ 5 }}
\\ \quad \\
x=4\qquad {\color{brown}{x-intercept\qquad (4,0)}}
\\ \quad \\
5(0)+4y=20\implies 0+4y=20\implies y=\cfrac{\cancel{ 20 }}{\cancel{ 4 }}
\\ \quad \\
y=5\qquad {\color{brown}{ y-intercept\qquad (0,5)}}\)

Answer 17

ohh ok almost right