Intersections 62534

The equation of the linear function is: y = -3x + 4
(a) determine the intersections with the axes
sketch chart

b) for which x applies
f (x) = - 1

c) for which x applies
f (x) = 0

d) for which y applies
f (-1/2) = y

Correct answer:

x0 =  1.3333
y0 =  0
x1 =  0
y1 =  4
x2 =  1.6667
x3 =  1.3333
y4 =  5.5

Step-by-step explanation:

y0=0  y0=3 x0+4 0=3 x0+4  3x0=4  x0=341.333333=1.3333
x1=0
y1=3 x1+4=3 0+4=4
1=3 x2+4  3x2=5  x2=351.666667=1.6667
0=3 x3+4  3x3=4  x3=341.333333=1.3333
y4=3 (1/2)+4=5.5



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