John is running in a race.The race is 25 miles long. After two hours,John has run 7 miles.How many miles does John have left to
2 answers:
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Answer:
Slope = 2
Y-Intercept = 4
Equation of Line is y=2x+4
Step-by-step explanation:
y-intercept is the point in the y-axis, where the line cuts it. So, looking at the graph, the y-intercept would be y = 4
To figure out the slope, we take any two points and calculate using the formula:
Where, m is the slope
is the first coordinate, and
is the second coordinate
<em>Let's take two points as: (-2,0) & (-1,2)</em>
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Plugging these into the formula we get the slope as:
Hence slope is 2
Equation of the line is given as y = mx + b, where m is the slope (in our case 2) and b is the y-intercept (in our case 4). Thus:
Equation of Line:
Answer: Daniel has $22 in his savings account balance.
Step-by-step explanation:
Let Daniel's savings account balance be x
and Henry's savings account balance be y, then as given Daniel's savings account balnce is 20 times that of Henry's, We get ...........(1)
And also total amount of both savings account is $462 so we get ......(2)
Now by substituting values of x from (1) into (2) we get,
And
So, Daniel's savings account balance is $440
and Henry's savings account balance is $22