Answer:
1. Line c
2. She subtract when she suppose to add
3. 2x-12+12 = 10+12
2x = 22
x = 22/2 = 11
x is 11
Given:
A straight-line graph has gradient 4 and crosses the y axis at (0, −3).
To find:
The equation of the given graph.
Solution:
The slope intercept form of a line is:
...(i)
Where, m is the slope of the line and b is the y-intercept.
A straight-line graph has gradient 4. It means the slope of the line is 4.

Line crosses the y axis at (0, −3). So, y-intercept is -3.

Putting m=4 and b=-3 in (i), we get


Therefore, the equation of the given line graph is
.
Answer:
13. $320
Step-by-step explanation:
First determine how much he made using an estimate
Earnings = hours * rate per hour We estimate 40 hours * 10 per hour
= 40 * 10
=400
Take home after taxes is 4/5 of his earnings
take home = 4/5 * 400
=320
Answer:
46student did not pass
Step-by-step explanation:
because did not pass on the lower grade