For perpendicular questions, you need to find the reciprocal of the slope and change it's sign.
I sent a picture to show you what I mean
With your graph questions, remember
rYse over run
This is for your slope. for example, with number 19, go up 7 over the right 4(Because it's a positive number) starting from the y-intercept but also backtrack so it's a line and your y-intercept, b, the number after the slope is the point where the line meets the y- axis. So for number 19, you would plot a point at (0, -4)
I'm not entirely sure that's how the slope things go (The actual slope not the y-intercept) so I would suggest asking your teacher about that.
Sorry I couldn't help more! I just hope this makes you understand just a little bit more :)
A. all whales
B. a pod of humpback whales
C. killer whales
D. all humpback whales
Answer:
I believe that the answer is 7.4 * 10^2 + 2
-- The answer to that equation is 754.8 if that was needed as well
Step-by-step explanation:
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Standard form is a way of writing down very large or very small numbers easily. 103 = 1000, so 4 × 103 = 4000 . So 4000 can be written as 4 × 10³ . This idea can be used to write even larger numbers down easily in standard form.Small numbers can also be written in standard form. However, instead of the index being positive (in the above example, the index was 3), it will be negative. The rules when writing a number in standard form is that first you write down a number between 1 and 10, then you write × 10(to the power of a number)., so I believe the answer would be 7.4*10^2+2
Hope I helped :)
Arithmetic operations can be used to change linear equations in form ax+by=c to y=mx+b form and vice versa and this can be determined by simple subtraction and division operation.
Given :
ax + by = c
y = mx + c
The following steps can be used to change the linear equation in form (ax+by=c) to (y=mx+b) form:
Step 1 - Write the equation.
ax + by = c
Step 2 - Subtract ax from both the sides in the above equation.
ax + by - ax = c - ax
by = c - ax
Step 3 - Divide by 'b' from both sides in the above equation.
By following the above steps equation (ax + by = c) can be converted into (y = mx + c).
The following steps can be used to change linear equation in form (y = mx + c) to (ax + by = c) form:
Step 1 - Write the equation.
y = mx + c
Step 2 - Subtract mx from both sides in the above equation.
y - mx = c + mx -mx
y - mx = c
By following the above steps equation (y = mx +c) can be converted into (ax + by = c).
For more information, refer to the link given below: