2t - y = 7 answers of
Answers
Answer:
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Step-by-step explanation:
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Answer:
Rearrange:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
2*t-y-(7)=0
STEP
1
:
Equation of a Straight Line
1.1 Solve 2t-y-7 = 0
Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).
"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.
In this formula :
y tells us how far up the line goes
x tells us how far along
m is the Slope or Gradient i.e. how steep the line is
b is the Y-intercept i.e. where the line crosses the Y axis
The X and Y intercepts and the Slope are called the line properties. We shall now graph the line 2t-y-7 = 0 and calculate its properties
Graph of a Straight Line :given above
Calculate the Y-Intercept :
Notice that when t = 0 the value of y is 7/-1 so this line "cuts" the y axis at y=-7.00000
y-intercept = 7/-1 = -7.00000
Calculate the X-Intercept :
When y = 0 the value of t is 7/2 Our line therefore "cuts" the t axis at t= 3.50000
t-intercept = 7/2 = 3.50000
Calculate the Slope :
Slope is defined as the change in y divided by the change in t. We note that for t=0, the value of y is -7.000 and for t=2.000, the value of y is -3.000. So, for a change of 2.000 in t (The change in t is sometimes referred to as "RUN") we get a change of -3.000 - (-7.000) = 4.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)
Slope = 2
Geometric figure: Straight Line
Slope = 2
t-intercept = 7/2 = 3.50000
