The ordered pairs (3,2) and (-2,13) are points on a linear function. Which equation best describes this function?
2 answers:
Answer:
y = x +
Step-by-step explanation:
Linear function is defined by y = ax+b
where a and b are constants and (x,y ) are variables given as point
using point (3,2) that is plugging x =3 and y =2 ,we
2 = 3a+b ............. equation(1)
likewise using point (-2,13) and plugging x =-2 and y =13 ,we get
13 = -2a+b .......... equation(2)
Solving the equation (1) and 2
subtracting equation 2 from equation 1
3a+b = 2
-2a+b = 13
__-_______________
we have 5a = -11
a=
plugging a= in equation (1),we get
3() +b =2
b = 2 -3()
b = 2+
b=
therefore equation is obtained by plugging
a = and b =
we get equation as
y = x +
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I hope this helped and remember to please try and understand the maths that got the answer, not just writing the answer down :))
0.34 x 100 = 34
Therefore 34% of the students walk to school.
I hope this helped and remember to please try and understand the maths that got the answer, not just writing the answer down :))