Question

Find the x intercept and y intercept of the following

equations, and sketch the graphs.
1. y=2x+3
2. y=(1/2)x -4
3. 4x-2y=5

Answer 1

For number 1, the x-intercept is -1.5 and the y- intercept is 3. For number 2, the x-intercept is 8 and the y-intercept is -4. For number 3, the x-intercept is -10 and the y-intercept is 5. To get these answers, use the formula of y=mx+b. M is the slope and b is the y-intercept so, for number 3, you need to divide everything by -2 to get y alone, then add 1/2 to both sides to use inverse operations. The real equation for number 3 is y=1/2x+5.