Explain to Jimmy how estimating first can help him determine if his answer is reasonable his answer was 384 is at a reasonable a
1 answer:
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Answer:
Area of the bounded region = 4 sq units
Step-by-step explanation:
The region bounded by y-axis,x-axis and the given line is in the shape of a right-angled triangle which is right-angled at origin.
Hence :
Area of the bounded region = Area of the right-triangle formed
=
Base length of the Δ = x-intercept of the line
Height of the Δ = y-intercept of the line.
x-intercept is obtained by putting y=0 in the equation y=-2x+4
∴x-intercept = 2
y-intercept is obtained by putting x=0 in the equation y=-2x+4
∴y-intercept = 4
Area of the right-triangle =
Answer:
Solve for x first.
54x + 4 < 7
54x < 7 - 4
54x < 3
x < 3 / 54
x < 1/18
So the value is less than 1/18.
To draw on the number line, draw from point 1/18 to the back with an arrow to represent that x is any number less than 1/18.
