Need help with these.
2 answers:
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Point slope form of a line:
where 
is your slope and 
is a point on your line.
For a line with a slope of 3/5 that passes through (10, -2)...
Let's plug these values into our formula.
Subtracting by a negative is the same thing as adding (the double negatives cancel), so let's simplify that.
There's our equation in point-slope form. (keep in mind that you're not going to want to distribute that 3/5 or subtract the 2 or anything. You want to keep it similar to the formula.
For a line with a slope of 3/5 that passes through (10, -2)...
Let's plug these values into our formula.
Subtracting by a negative is the same thing as adding (the double negatives cancel), so let's simplify that.
There's our equation in point-slope form. (keep in mind that you're not going to want to distribute that 3/5 or subtract the 2 or anything. You want to keep it similar to the formula.
Answer:
1. x + 4 = 9
Hint: the word 'sum' generally refers to addition.
2. 10<em>a</em> = 70
3. = 15
4. - 4 = 4