Which equation has the solution y=2?
1 answer:
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Answer:
QR = 17 cm
Step-by-step explanation:
Δ RST is a 5- 12- 13 triangle with hypotenuse RT = 13 cm , then
TS = 5 cm and PT = 2 × 5 = 10 cm
So PS = 10 + 5 = 15 cm
PS is parallel to the vertical line from vertex Q and intersects the horizontal line projected from SR of length 20 - 12 = 8 cm
Using the right triangle formed calculate QR using Pythagoras' identity
QR² = 15² + 8² = 225 + 64 = 289 ( take square root of both sides )
QR = = 17
Answer:
Step-by-step explanation:
Point-slope formula is represented by the equation . When knowing a point a line crosses through and its slope, you can write an equation in this form. Substitute the
,
, and
for real values.
The represents the slope of the line. Since we know the slope is -2, substitute -2 for
. The
and
represent the x and y values of the point the line passes through. Since the line passes through (4, -6), substitute 4 for
and -6 for
. This gives the following answer and equation: