1.) If you graph the points you will find the (D) (-3,2) and (0,4) has a slope of 2/3
2.) If you graph this also you will find that it is a straight line, this means that the slope is 0.
3.) Slope-intercept form would be y=mx+b.
So you would subtract 3/4x from each side to get y by itself. Then you will have 4/5y=-3/4x+4. You need to get rid of the 4/5 to get y by itself so you need to multiply each side by 5/4.
(5/4)(-3/4)=-15/16. Don't forget the 4, so (4/1)(5/4). Make the denominator the same, (16,4)(5/4)=80/16 which simplifies down to 5. Now you have y=-15/16x+5. Now you know what the slope is and the y-intercept.
The slope will be -15/16 and the y-intercept will be 5.
So, 1) D 2) B 3)D
