- Three vertices of a rectangle have coordinates<span> (–</span>3, 1), (7,1), and (7, –4<span>). ... What are the </span>coordinates<span> of the </span>fourth vertex<span> of the </span>rectangle? A. (–3, –4) B. (–3, –1) C. (7, –3) ... go straight down basically -3<span> there </span>has<span> to be two -</span>3 for<span> x coordinate and two </span>7 for y coordinate<span> ... Mathematics; </span>5<span> points; 37 seconds ago.</span>
Answer:
y = -4x + 2
Step-by-step explanation:
y = mx + b ( slope-intercept)
1. Find Slope:

Lets name 2 as y2 and 10 as y1. And 0 as x2 and 2 as x1.
=
= -4
m/slope = -4
2. Find y-intercept:

2 = -4(0) + b
= 2 = b
Y-intercept/b = 2
3. Put into slope-intercept form:
y = mx + b
= y = -4x + 2
Hope that helps! :D
Part A
The graph is shown below as an attached image.
The diagram shows a straight line that goes through the two points (0,-3) and (1, -5)
I'm using GeoGebra to graph the line.
side note: (0, -3) is the y intercept which is where the graph crosses the y axis.
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Part B
Answer is choice 2
The graph can be written in the form y = mx+b, so it is linear
In this case, m = -2 is the slope and b = -3 is the y intercept
We can write the slope as m = -2 = -2/1. This tells us that we can move down 2 units and then over to the right 1 units to get from point to point. This process of "down 2, over to the right 1" happens when moving from point A to point B in the diagram below.
y=mx+b
since the b is 0, the formula is y= -3x