9514 1404 393
Answer:
- slope: 6; y-intercept: -3
- slope: 11; y-intercept: -1
- slope: 2; y-intercept: -13
- slope: 1; y-intercept: -6
Step-by-step explanation:
The slope is found using the slope formula. It works well to choose ordered pairs that only differ by 1 in their x-value.
m = (y2 -y1)/(x2 -x1)
The y-intercept is the y-value when x=0. If it is not in the table, it can be found from one point and the slope.
b = y1 -m·x1
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1) slope = (9 -3)/(2 -1) = 6
y-intercept = -9 -6(-1) = -3
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2) slope = (21 -(-1))/(2 -0) = 22/2 = 11
y-intercept = -1 . . . from table for x=0
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3) slope = (-9-(-11))/(2-1) = 2
y-intercept = -11 -(2)(1) = -13
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4) slope = (-4 -(-5))/(2 -1) = 1
y-intercept = -7 -1(-1) = -6
Answer:
B
Step-by-step explanation:
16 - 7 = 9
Answer:
Hey there!
The line 4x-3y=-9 can be converted to y=mx+b form.
4x-3y=-9
-3y=-4x-9
3y=4x+9
y=4/3x+3
The slope of a line perpendicular to this line would be -3/4.
The slope of a line parallel to this line would be 4/3.
Hope this helps :)
Answer:
y=3.14x
Step-by-step explanation:
if you graph this on a calculator you can just visually see what line lines up with all the points. but you can also plug in one of the points into the equations to see if its true or not and if its true choose that equation. like use the first points (2, 6.28) and plug them into the equations and see which one is true.
