Can somebody please help me?!! I will give BRAINLIEST!!
1 answer:
Answer:
Step-by-step explanation:
Mark the two points (-1,7) and (1,-1) on the graph. Then draw a straight line between them. To determine the equation that goes through these two points, we can use the two given points to find the slope of the line. The standard form of a straight line equation is
y = mx + b,
where m is the slope and y is the y-intercept (the value of y when x = 0).
Slope is also known as the "Rise"/"Run" - the change in y divided by the change in x. We can use the two points to calculate this:
Rise (-1-(7) = -8 Run = (1 - (-1) = 2
The slope is therefore (-8/2) or -4.
y = -4x + b
We can find b by entering either of the two points in y = -4x + b and solve for b. I'll use (1,-1) since I have my 1's multiplication table memorized
y = -4x + b
-1 = -4(1) + b
b = 3
The straight line equation that connects the two points is
y = -4x + 3
You can graph this equation (e.g., on DESMOS) to see how it intersects the points. <u>[Attached]</u>
The coordinates of the y intercept are (0,3).
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Answer:
56 students scored in the range of 1301 to 1600.
Step-by-step explanation:
The given question is without any figure or attachment. Here is the figure attached with the answer.
In the figure attached,
total number of students who took SAT = 400
Percentage of the students who scored 1301 to 1600 range = 14% (given in the pie chart)
Total number of students who are in this range = 14% of total number of students
=
= 56
Therefore, 56 students scored in the range of 1301 to 1600.
