Question

can someone please HELP me with this question? Graph the equation 4x+5y=20
Please show me step by step because in finding it hard to understand how to do these

Answer 1

Solve the equation for y, which will give us the form y=mx+b

4x-4x+5y = 20-4x
5y=20-4x
5y/5 = 20/5 - 4x/5
y = 4 - 4x/5

Answer 2

y = mx + b
m = slope, b = y-intercept (where the line crosses the y-axis)
The line will cross the y-axis at 4 or (0,4)

Answer 3

From there use the slope, which is the number by x...-4/5.

Start at the point you plotted (0,4)...go up 4 and to the left 5.
You can also start at (0,4) and go down 4 and to the right 5.

Answer 4

Does that help?

Answer 5

YES thank you!