Which of the following points are on the line y = 3x - 5?select the right answer
I. (2,-1)
II. (4,3)
III. (0, -5)
2007-01-17 14:51:00 · 8 answers · asked by Felicia F 1 in Science & Mathematics ➔ Mathematics
answer: III.
substituting x=0, y = 3(0)-5 = -5
this is the only option it works for
2007-01-17 14:54:39 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Solution: III (0, -5) satisfies the equation
-5 = 3*(0) -5
-5 = -5
2007-01-17 22:56:25 · answer #2 · answered by vlake_phoenix 2 · 0⤊ 0⤋
Either graph it, with -5 as your y-intercept and 3/1 as your slope, or swap in the variables of each choice and see what works.
y = 3x-5
1. -1 = 3(2)-5 ... -1 = 6 - 5 ... -1 <> 1, so incorrect
2. 3 = 3(4)-5 ... 3 = 12-5 ... 3<> 7, so incorrect
3. -5 = 3(0)-5 ... -5 = 0-5 ... -5 = -5, CORRECT
2007-01-17 22:58:46 · answer #3 · answered by wise_ole_sage 2 · 0⤊ 0⤋
III. (0, -5)
y = mx + b
this is called the y-intercept form of a line
m = the slope
b = the y value when it crosses the y axis. This means when x = 0, y will be -5.
2007-01-17 22:55:37 · answer #4 · answered by kob102186 1 · 0⤊ 0⤋
the answer is III. (0,-5)
in I. it would look like this:
-1=3(2)-5
-1=6-5
-1!=1
in II. it would look like this:
3=3(4)-5
3=12-5
3!=7
in III. it would look like this:
-5=3(0)-5
-5=0-5
-5=-5
2007-01-17 22:55:59 · answer #5 · answered by Jors 3 · 0⤊ 0⤋
(0, -5)
2007-01-17 22:54:54 · answer #6 · answered by hoops4bibby 2 · 0⤊ 0⤋
0, -5
substitute each answer on the equation - if it satisfies the equation, then that's the correct answer
2007-01-17 22:55:20 · answer #7 · answered by mitzbitz 2 · 0⤊ 0⤋
(0,-5) and (2,0)
2007-01-17 22:58:41 · answer #8 · answered by JO 2 · 0⤊ 0⤋