y
=
3
x
4
−
3
Use the slope-intercept form to find the slope and y-intercept.
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Slope:
3
4
Y-Intercept:
−
3
Answer90 degrees
Step-by-step explanation:
If you put brackets around (2+1), your method of working is:
1) 15-4*(2+1)=3
2) 15-4*3=3
3) 15-12=3
You don't need any more brackets, as the BIDMAS (brackets, Indices, division, multiplication, addition, subtraction) rule does the rest of the job for you.
The answer is therefore: 15-4*(2+1)=3
